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How to Pass a Drug Test

If you’re wondering how to pass a drug test, you are in the right place.  Take few minutes to read down the page, as we’ve attempted to give a fairly comprehensive overview of:
• Available options to pass a drug test
• Various substances tested for
• Types of testing
• A solution you can get and use today, if you’re under the gun (so-to-say). Read down the page to “Risks and Variables,” and the Safest Option –Total Detox Friend.”

This page was last updated on 26th of September 2017

Also included here are the pros and cons of various strategies to escape detection, the weaknesses and strengths of each.  So, stick with us here for a few minutes.  The information you are looking for is probably here.

Must pass drug testPeople who visit this page, often also visit these pages:

Drug Screening
Scroll down for chart of Drug Detection Times (how long after use can a drug be detected).

There are methods you can incorporate to help you pass a drug test successfully. The idea is to get the drugs out of your system so that you can get hired for a job, or, so you don’t lose a job, or other scenarios that you may be facing –perhaps probation.  Whether you can pass a drug test in 1 day, or even in a week will be determined by a few variables, covered further down the page.

The most challenging scenario is facing random drug screenings at the workplace.  In some companies you are given a certain amount of time (typically two hours) to report once notified.


Pass a Drug Test:

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Random Tests

Once notified, you are on the hot seat in terms of being able to take some sort of evasive action.  You may be limited in what remedial action you can reasonably hope to accomplish without arousing suspicion.

If you have ample time –meaning, if you know in advance you have to report on a certain day, it leaves more options open to you.

This article is focused upon the types of drug screenings common in the workplace and court ordered probation screenings.  Performance enhancing drugs is a category outside the scope of this article.

Types of Drug Testing

There are several methods of drug testing that can be administered. The most common ones are:

Pass a Drug Test | Blood and Urine SamplesBlood Testing – A vial of blood is drawn and then sent to a lab to be tested for certain types of drugs.  This is common in sanctioned sporting events.

Saliva Drug Test – Using a cotton swab along the inside of the cheek, the saliva is tested to see what types of drugs are present. Any usage within the past few days can be detected.  Because of the simplicity, this type of test may be gaining in popularity among employers.  More on that here:

Urine Drug test (urinalysis)  – Urine is collected and then tested immediately to check the creatinine levels and the temperature.  This is the first screen –a sort of validity check.   If it does not check out within certain parameters, another sample will likely be requested.

Hair Follicle Drug Test –Strands of hair are taken and tested to determine if drugs have been used in the body.  Contained within your hair is an official record of any toxins that may have been in your blood in the past few months.  Because your hair grows so slowly, where the toxin shows up in a strand of hair is an effective timeline.  What toxins are present, when they showed up and in what order can be seen in the hair follicle test.  As you might imagine, the hair drug test is difficult to fool.

Types of Drugs that are Tested for

 There are many types of drugs that are tested for. What is being looked at can depend on the entity that is conducting the test. Here is a list of the most common types of drugs that are tested for:

  • Marijuana, hashish (THC, Cannabis)
  • Cocaine, Crack
  • Opiates: Heroin, Morphine, Codeine, and some synthetic prescription painkillers
  • Methamphetamine and ecstasy (uppers)
  • Benzodiazepines (downers like Valium)

Urine Drug Test Strategies

Urine Sample Dilution
Diluting your urine sample with a commercially available substance, diluting with warm water, and substituting clean urine for your own are common ploys in use by users who need to pass a drug test.

There are products on the market that claim they can dilute your urine so that the drug test won’t be able to pick up on the drugs that are in your system. If you go this route, look for a product that has good proven results. Check out independent reviews to make up your mind because quality is obviously very important. You also need to make sure you only use the product as directed and that it doesn’t pose any health risks to you.

Little Tip
When a product flies the ‘Guaranteed Results’ flag, you might be a little suspect.  Getting your money back is of little comfort after failing your drug test.  Everyone is different, too.  Which means what worked for Jane might not work for Dick.

More on that in “How to Pass a Drug Test: About Risks and Variables,” below.

The risks involved with Dilution
Dilution results in the drug residue appearing less concentrated in the urine sample.  The addition of any fluid will result also in a reduced amount of creatinine, a natural substance, and a reduced specific gravity.

The specific gravity is the weight of the urine, as compared to pure water.  Urine should fall within certain parameters.  Dilution of a sample may cause the sample to be regarded as suspect.

All labs are able to detect adulterants in urine samples.  Accordingly, dilution is not considered a viable option when it comes to passing a drug test.

Internal dilution is accomplished by drinking great amounts of water in the time leading up to the urinalysis sampling.  There are some problems with that, as well, and some risk to your health.  There are documented cases of the damaging effects of drinking too much water in a short time period.  The strategy can be detected, as the urine will not have the normal chemical balance, will be colorless and will arouse suspicion.

Some products available on the market act as a diuretic so your body will off-load more water than normal, upsetting the concentration of the residue in the urine.  A large amount of water is required to be taken in.  The products typically contain Vitamin B to give the sample some color.  It also contains creatinine to avoid being flagged as being diluted. 

As mentioned above, absence of a high enough concentration of creatinine is a sign a sample has been diluted.

Some of these products could be successful, although there are variables you need to be aware of, as noted down the page.

Masking, Adding Adulterants to, or Otherwise Manipulating the Urine Sample
There are substances available on the market that claim to mask the presence of drug residue (or metabolites) in the urine.  Products containing nitrites and chromates (oxidants) are commonly found in the marketplace.  These substances can be detected in the laboratory.

Other commonly found substances in the household, if added to the urine sample are known to destroy the sample, resulting in a ‘false negative.’ These may be divided into categories of chemicals and ‘over-the-counter drugs such as aspirin and ibuprofen.  Some common chemicals that affect the sample are the aforementioned chromates and nitrites, as well as common salt, chlorine bleach, eye drops and vinegar.

Direct Line-of-sightEach of these substances must be added to the sample at the time it is collected. For that reason, some testing procedures call for strict line-of-sight observance of the collection cup at all times to remove any opportunities for the subject to tamper with the sample.

Laboratory procedures have continued to advance and are capable of detecting, either directly or indirectly, the addition of adulterants.

In summary, when the testing reveals oxidants, or pH, creatinine or specific gravity outside of set parameters, it is noted, regardless of whether the test was negative.  The presence of the note on a negative test would cause it to be flagged as a positive urinalysis.

Perhaps the oldest ploy to beat a urine analysis is to provide urine obtained from somewhere or somebody else.  Dehydrated urine is available for sale.  People have been known to carry urine in a balloon or condom concealed in a body cavity.

Special underwear is even available to conceal a small container of urine.  The problem with these methods is keeping the sample up to the proper temperature.  Even if the container is next to your skin, it usually would not be enough.  Also available is a contraption that will heat the sample.  Then it might be too warm.  How can you regulate it?

Keep in mind, you only have limited time before you are expected to emerge from the bathroom with the sample in your hand.  And, as soon as you hand it over, the temperature will be measured.

Detox to Pass Drug Test

The process of detoxifying can be more reliable than diluting the urine -if you have time. However, it can take several days for some drugs to get completely out of your system. Heavy chronic use of weed can linger for weeks in some people.  Some substances, such as steroids can stay in the body for months.

If your test is random and you only have a small window of time in which to work, you can try one of the detox products on the market. They claim that you will be able to remove all traces of the drugs from your system.

What are These Products?
Goldenseal is a popular one.  Goldenseal is an herb derived from the flowering plant native to northeastern North America (which would include the southeast regions of Canada and the northeast areas of the U.S.).

Some others are herbs, teas, Vitamin C, and things like vinegar (be careful with that one).  Niacin is another that is purported to help release toxins for elimination.  Activated charcoal can help with that too.  Lecithin is a natural plant substance that has many purported benefits, including helping with detoxification.


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 Shampoo for Toxins in the Hair
A hair follicle sample is very accurate in terms of detecting drug use over a long time period -30 to as many as 90 days, depending upon the length of sample.  The procedure is generally done with hairs from the head.  If the head is shaved, hair from elsewhere on the body will suffice.

Body hair, because it grows at a slower rate than hair on the head, may detect substances as far back as a year.

There are special shampoo products on the market that are stated to help remove those toxins so that the drug test will be negative.  However, not everyone that has used them has been able to get successful results.

This is because the drug residue is on the inside of the hair.  The shampoo will not reach it.  There are very short odds you will pass a hair follicle drug test by shampooing.

What is possible, though, is passing the hair test because there isn’t much in your system.  To explore this, in order to know ahead of time, there are companies that will do an anonymous hair drug test without identification required, that may allow some piece of mind.

If you try using the shampoo, you may pass the test –but not because you washed it away.  It might only be because there wasn’t much there to begin with.


Time is the Constant – Everything Else Varies

If you have enough time, any controlled substance in your body can be eliminated.  It is the short notice of an impending drug test that can serve to interrupt your education or your career.  Or, rescind your probation.

The substances mentioned above may help shorten the time span –or, may not.  Or, they may not shorten the time span quite enough.  Don’t lose sight of the fact that your hair is a long term record of all foreign substances in your body, be it controlled substances, household chemical exposure, exposure to herbicides, pesticides, fertilizer –you name it.


How to Pass a Drug Test | About Risks and Variables

Get this -It’s Important.  Many People Get This Wrong

Here is the scoop: Even if you have a reputable program to follow, like the ‘Total Detox Friend’ mentioned above and below, if you do not follow the exact steps, in the exact sequence, you may adversely affect the outcome.  


Most people who don’t manage to squeak through the urine test can attribute it to not following the instructions.  
Keep that in mind regardless of what method you choose to use.


Another thing to keep in mind is that no matter what you do, the risk is going to be there. Because we’re all different there are many variables; a 100% success rate may not be achievable, regardless of what they tell you.It is possible to approach a very high success rate, however.Don’t assume that they all work or that they all use the same ingredients.


The Total Detox Friend procedure is a safe course of action that won’t eat holes in your liver, as some of the other folk remedies might.
If it was me, if the Stakes were High; if I could not afford to fail a drug screen; if I had no time to detox naturally, I’d go with this one.Why?The modest price includes speaking to a counselor, if needed, if you have any questions or concerns about implementing the procedure.Where else do you find that?


Check Out the Total Detox Friend. Click Here to Learn More NOW

 Trust Seals Horiz

More about Variables

Variables such as what drugs you have been using, how often you use them, the amount you use, and when you last used them all play a role in if the drug test will show positive or not. Your own body chemistry, your size and metabolism vary from everyone else’s.  That only further complicates the scenario and possible outcome scenarios.

If you have been using various types of drugs there is a very good chance they will show up. Thanks to advances in technology, these tests continue to get better and better. They can detect smaller traces of drugs for longer period of time.

There are all sorts of methods to try to get around a positive test. As mentioned above, taking someone else’s urine to a testing site with you is not foolproof.  Many testing procedures now dictate an attendant watch you to ensure there is no tampering with the sample and to make sure the urine is indeed from the person that it should be from.

If you choose to try and fool the testing procedure, you are leaving it up to luck and the toss of a coin about the outcome.

False Positives
What happens  if your drug test comes out positive and you haven’t been using? You will need to evaluate that on a personal basis. First, have you taken any herbal or over the counter medications recently? They could have ingredients in them that will trigger a false positive on the test. Second, have you taken any prescription medications that were prescribed for you?

In many cases, the attendant will ask you to list any prescription drugs or OTC (over-the-counter) medications you have been taking.

Poppy seeds have been known to trigger a positive.  In recent years, laboratories have become more sophisticated and poppy seeds are not a problem.

If you remain adamant that you haven’t used any such substances you can ask for the test to be administered again.

Home Drug Testing
You can buy home drug testing kits online that will help you to see if what you are using is going to show up. Of course you need to do your homework when you buy such tests. You need to make sure what you buy is good quality so that it gives accurate results. You also want to make sure you follow the instructions to a ‘T’ -to avoid inaccurate results.

The testing kit needs to be specific for the types of drugs that you are looking for or that you think you will be tested for by an employer or other entity.

It is doubtful that an at-home kit could accomplish the same degree of analysis that is done in a professional lab.

Big Tip
If you know you are on shaky ground, do not act in a manner that may compromise your position.  Don’t tip your hand.  If your results come back positive, you should ask for a retest.  You may get one, or you may not.

Drug Detection Times (Durations) of Selected Substances (Approximate)* -Urine Test

  • Amphetamine  -up to 3 days
  • Methamphetamine -up to 3 days
  • Cocaine -Less than 1 Day
  • Benzoylecgonine (cocaine’s metabolite) -about 5 days
  • LSD -Less than 1 Day



  • Single use -3 days
  • Moderate Use (4 times per week) – 5 Days
  • Heavy Use (every day) -10 Days
  • Chronic Heavy Use -30 Days


  • Morphine -3 Days
  • Codeine -3 Days
  • Hydrocodone -3 Days
  • Oxycodone -3 Days

*These are approximate detection times for the drug or metabolites in urine. The actual detection time depends on dose, frequency of use, and individual metabolism.  Source: Mayo Clinic 2011

Check Out the Total Detox Friend. Click Here to Learn More NOW


If you have found any of this information to be useful, please ‘Share’ it, and/or ‘Like’ it so others can find it too.  Social buttons are found on each page.  Thank you for spending some time here.  Please share any insight you may have by leaving a comment below.


Additional information:

Approximate Detection Times Table  
Michael Vick
Drug test

Image Credits:
angellodeco / 123RF Stock Photo
‘Direct Line of Sight’ is in the Public Domain.


154 Responses to “How to Pass a Drug Test”

  1. David Jerczak says:

    Hi Jomie –

    Thanks for stopping by.

    As you know there are lots of variables, like metabolism, body weight, etc, etc.

    If you didn’t take much 10 days ago and hadn’t smoked for several weeks prior, the odds are in your favor.

    I would be interested to know the outcome when you get it. I have a feeling by the time you read this, you will have already tested.

    Best regards,
    Dave J

  2. Jomie says:

    Hi there,
    I smoked 10 days ago but sharing a joint with a group of 10 or so people. I had to take a drug test today and am rather worried. I rarely smoke and last time I did was over 2 months ago.

  3. David Jerczak says:

    Taquan –

    As you know, or, as you can see on our pages here, we have available a process, considered reliable, to get you by a Urine test.

    Short notice is always a challenge.

    Dave J

  4. David Jerczak says:

    There are lots of variables, Sam.

    Have you tried a ‘home test’ kit?

    If there is any doubt, I advise to err on the side of caution. Whether someone does, of
    course, depends upon how emotionally attached one is to the outcome; i.e., how high the stakes are.

    The ‘Drug Test Friend’ process is generally regarded as reliable. Get more info here:

    Best of luck to you. Thanks for visiting us here.

    Dave J

  5. sam says:

    I smoked about 3 days total 2nd, 4th, and the 6th, of september.
    Once a day for those 3 days it is now the 15th I may have a UA in 2 to 3 days following the directions here could I pass?

  6. Taquan says:

    I smoked last night and just found out that I have a drug test tomorrow morning. What should I do?

  7. David Jerczak says:

    Jessica –

    If, in fact, you smoked just once after going without for so long, the odds are you will be OK.

    I’d be interested to know how you made out with the test.

    Thanks for visiting.

    Dave J

  8. David Jerczak says:

    Hey Frank –

    Hair and urine? Not so good on the hair and probably not too well on the urine either.

    You’re dancing a little close to the edge there.

    I would use the Drug Test Friend procedure (more info here:

    It is generally regarded as reliable.

    Dave J

  9. Frank says:


    I smoked marijuana one night probably July 15. Since then, I took just a few small hits August 23. How do you think I would perform on a hair and urine test on September 3?


  10. Jessica says:

    I have not smoked since January 7, 2014. I then slipped up and took a couple hits on July 26th so I’ve been clean for approximately 30 days. I have a UA in the morning for probation. I’m about 5’5″ and weigh about 200 pounds. Do you think I’ll be able to pass my UA with the small amount I smoked 30 days ago?

  11. David Jerczak says:

    TQ –

    Thanks for visiting.

    There are many variables, many of which I talk about on this page.

    If there is any doubt -and, this, of course is entirely dependent
    upon how emotionally attached you are to the outcome (how high the stakes),
    get the ‘Drug Test Friend’ product -which is also explained on this page.

    It is generally regarded as reliable. More info here:

    Best of luck to you.

    Dave J

  12. TQ says:

    I just smoked weed on Saturday n Tuesday n I have a urine drug test in two weeks do you think I’ll pass

  13. David Jerczak says:

    Hi Will –

    Thanks for visiting here. I address that topic right here on our homepage.

    You’ll find the discussion about drug test detection times if you scroll down a bit.
    There is a section about variables too.

    To answer your question, maybe 10 days or more. Chronic use sometimes takes 30 days or more. Again there are variables.

    Hope that helps.

    Dave J

  14. will says:

    hello Dave
    i smoke weed daily ( 5 or 6 one hits a day ) and was wondering how long you think it would take me to detox my body to pass a test. i have very little body fat and drink at least a gallon or 2 of water per day. not counting soda or beer. thank you for your reply and help


  15. David Jerczak says:

    Mo –

    It seems like you should be alright. If you want an extra measure of confidence,
    use the Drug Test Friend process the day of. Find more info here: Drug Test Friend

    Thanks for visiting.

    Dave J

  16. Mo says:


    I have to take a test around the first of July. I stopped smoking from May12-24 but relapsed and smoked on May 25-27. I smoked about 3 blunts total between this time period. It will be about 34-37 i have not smoked before my test in July. I walk about 4-6 miles a day and drink lots ocranberry juice already. What do you think the chances are of passing?

  17. David Jerczak says:

    Hey Jimmy –

    I am not familiar with the product you mentioned. If I had to guess, I’d say to use it the day of (your test).

    Dave J

  18. Jimmy says:

    Hi I smoked pot 420 and 4/21 2014 before that i smoked 3 times a week for 2 months I have to take an hair test tomorrow I Bought the Ultimate strength hair body wash system kit it doesn’t say to use before i go or ahead of time whats your best advice?

  19. David Jerczak says:

    Sam –

    There is no definitive answer to your question; no risk free choice other than abstinence.

    If you can’t do that, and failure is not an option, try the Drug Test Friend process. It is considered reliable.

    Again -Nothing is 100% risk free.

    See here: Drug Test Friend

    Dave J

  20. David Jerczak says:

    Jane –

    There are a lot of parameters they screen for. Creatinine, for example -if the levels are askew, the test result
    might be inconclusive. The lab will break down the sample to try to determine if THC metabolites are present, have been masked or if
    the sample was adulterated, etc.

    Dave J

  21. David Jerczak says:

    Raychel –

    Lots of variables. The “approximate Detection Times” found HERE (emphasis on Approximate) show the range of up to 30 days for chronic heavy use.

    You might be right on the cusp. There is still about 10 days or so -you have time.

    If you get close to test time and still are concerned, the ‘Drug Test Friend’ process is considered reliable. Find it here: Drug Test Friend

    Whether or not you need it is wholly dependent upon how emotionally invested you are to the outcome; i.e., Is failure an option?

    Thanks for visiting. And good luck to you.

    Dave J

  22. Raychel says:

    If I’ve been clean for 30 days but my home drug test still said I fail, probably because of lack to water. But it’s day 35 clean and I started taking activated charcol how long will it take to fully clean me out? My drug test is June 5th. Will I pass? I do weight 180 I’m 5’8 a lot of muscle but I did recently gain a belly (not a big one) I’ve been drinking a lot of water containing fruit to help.

  23. Jane says:

    Hey Dave, so I wrote a few days ago trying to get clean for my drug test on Friday (23rd). I went in and I believe the technician said she was unable to read my results for THC (which is what I was trying to mask). So, she said she had to send the sample to labcorp for “confirmation thc”. What does that mean and am I screwed? Stakes are pretty high and I’m worried. The detox drink I used only contained B-50 complex vitamins and creatine. Am I screwed or did the detox do its job? This has never happened to me before so I have no clue what to expect. If I failed wouldn’t she have told me then and there? Is she trying to confirm I’m clean or not clean?! HeLP!!

  24. Sammy says:

    Hi, I need to pass a urine test in 36 days. I am currently a heavy marijuana smoker and have been for some time. I am just going to abstain between now and then except for one brief visit to Amsterdam where I’m wanting to indulge a little. That will happen probably at about day 10 in this 36 day period.

    Do you think I will be safe for a urine test if I smoke at about day 10 of a 36 day abstinence?

    Do you think if I smoke once or twice around day 10 it could affect my results much one way or the other?

    I’m anticipating being able to keep my metabolism up for the duration of the abstinence.


  25. David Jerczak says:

    Delilah –

    Of greater importance is the temperature of the sample. How did you do with that?

    Dave J

  26. delilah7474 says:

    I used someone else’s clean piss today for a urine screen. I’m a girl though and forgot to put some toilet paper in the toilet. Should I be worried about that?


  27. David Jerczak says:

    Harry –

    You didn’t mention -so, I will. If using doe urine, you must first be reasonably assured the doe can pass a urine drug test.

    If you happen to get urine from a doe who has been toking or doing lines lately, you won’t be helping your cause.
    In other words, you need to know your doe.


    Seriously, Harry, in this day and age, the labs are sufficiently sophisticated to recognize the difference between
    human urine and doe urine, be it real or artificial. I am guessing there was some other factor that helped you pass.

    Thanks for visiting DrugTestTips

    Dave J

  28. Harry Balzak says:

    I found that drinking doe urine helped me pass my drug test. I smoked weed the night before and drank doe urine the day of my test. I passed it!!!!! I recommend this method to everyone.

  29. David Jerczak says:

    Sam –

    I would allow at least two months.

    Dave J

  30. sammy says:

    i just recently got a job at Stanley electric and they do a hair follicle test. i was clean from smoking for about 2 months and hit a blunt 2 times bout 2 weeks ago. i also occasionally do pain pills for my back and i recently bout 2 weeks ago did heroin but i snorted it like i do the pain pills and ive done that about 3 times since then only cause of my back. ive been working at Stanley for about a month now but im scared ill be asked to be hired on and wont be able to pass the drug test. Do you think ill be clean in about 2 months if im not a frequent user of pain pills and heroin?

  31. David Jerczak says:

    Morgan –

    41 days should do it. Take an ‘at-home’ test again when the time is closer.
    If you need help with it, I would err on the side of conservatism and go for
    the ‘Drug Test Friend.’

    It sounds like, for you, the stakes are high.

    I worked in the nuclear power industry for many years and was subject to random screenings.
    I quit fooling around with pot (for 20 years). It wasn’t worth losing my means of making
    a living (the stakes were high for me).

    Thanks for visiting.

    Dave J

  32. David Jerczak says:

    Hi Bill –

    If it was me, I would want a month’s time before I’d feel comfortable about it.
    Having said that, you may well be alright, given the small amount you ingested.

    You might want to try a home test kit available over-the-counter. I don’t believe
    they are as sophisticated as the labs are that will screen you.

    Depending upon how emotionally attached you are to the outcome, you might consider
    taking some evasive action. The Drug Test Friend is considered reliable.

    Thanks for visiting.

    Dave J

  33. Bill W says:


    I have smoked marijuana about 3 times in the past 17 days, all about a week apart. Each time has been a very little amount, total of around a gram. I am 6’1″ 175 lbs. and exercise fairly regularly. My urine test can be coming up in the next couple of weeks and I was just curious if there was any real time that you could give me until I would pass.

    Thanks for the help.


  34. Morgan Neuvo says:

    Hello.. So i have to pass drug test for nursing school. In the summer I smoke almost everyday, multiple times a day. During the school year I cut down to maybe 2-4 times a week or less. Over christmas break I went back to smoking quite often. After break, which was mid january, I quit smoking completely. I had a lapse on February 15th and smoked half of a bowl. I have not smoked since then. My drug test was scheduled for March 14th and I took an at home drug test beforehand to make sure I would pass… I did not. So i have rescheduled my appointment for March 28th, by this time it will be 41 days since I last smoked.. half of a bowl… I have taken two drug tests, one over spring break (March 3rd) and one March 14th and did not pass. I’m worried I still won’t pass. I have been taking cranberry pills, drinking a lot of water, and working out. I am 19 and weigh 125 lbs with a normal metabolism. Please help!

  35. David Jerczak says:

    Justin –

    According to the Mayo Clinic table (HERE), meth should take about 3 days to clear.

    Dave J

  36. David Jerczak says:

    JC –

    To shave all your hair will cast suspicion and will often have unfavorable consequences.

    The Hair Test Friend’ makes use of items that can be purchased.

    The key, I’m told, is to follow the exact instructions -in the
    right order and timing sequence.

    Best of luck to you. And, thanks for visiting.

    Dave J

  37. JC says:

    Hi there! I might be forced to make a hair drug test in within a couple months (cant tell for sure). I´m 5,6 tall and weight 240 pounds. The test will be done by Psychemedics, that brag the fact that the window detection can be up to a year (considering body hair).
    I smoke pot everyday, and would like some tips to pass. Having said that:
    1. do your tips (to pass a hair test) involve things that i can but at the grocery store?
    2. if i stop smoking now, and if i cut all the hair of my body, will I fail if the test will be done in less than 90 days?
    Tks a lot!

  38. justin says:

    I just want to be sure all meth is out of my system I only use occasionally I know I have saliva test on Monday if I take a urine test test on sun and it comes up negative does that mean it is gone from saliva as well

  39. David Jerczak says:

    Lynchie –

    We don’t judge.

    Check this out for approx. drug test detection times: Mayo Medical Labs

    According to their chart, Coke is detectable in a urine sample less than a day. We’re not scientists here so I can’t back that up. It is something for you to go on.

    A hair sample will produce different results. If you are facing a hair test, check out the ‘Hair Test Friend’ product, found here: -found HERE. Learn more by going there and checking it out.

    Important Note: You will arrive at the ‘Drug Test Friend’ website. Look in the upper right column for ‘Hair Test Friend’ link.

    The key, I’m told, is to follow the instructions and timing sequence exactly.

    There is a phone number at that website to use if you have a question or need support after your purchase transaction. The phones are least busy before noon (eastern time). After that it’s more difficult to get through sometimes, until after 8PM eastern.

    Here is the link again:

    I wish you the best. Thanks for visiting

    Dave J

    Good luck.

  40. lynchie says:

    hello! Please don’t judge….. I’m turning my life around and got rid of the wrong people… So i’ve been using cocaine on a regular basis almost every weekend. i would say 1 gram nasally. I haven’t used in 9 days. I’m getting a urine test done possibly tomorrow or the next day. i have a good metabolism, i eat well, veges and fruits. I take vitamins every day, a probiotic and usually psyliium husk every day. Although I ran out and haven’t had the psyllium in a couple days. I also take charcoal every now an then. i happened to eat some bad meat on Thursday night and it made me throw up quite a bit. I hope the benzo metabolite of cocaine has left my body. Any suggestions to clear it? Thank you. I got a job I’ve been looking for- full time and in my field of study.

  41. David Jerczak says:

    Jen –
    According to the Mayo site HERE, Diazepam (Valium) looks like 10 days to clear. There are always variables, however. You may be OK.

    Hope that helps. Thanks for visiting.

    Dave J

  42. Jen B says:

    Ok question for everyone out there (hope doing this right) BUT had a drug screen yesterday, first one ever. Up until now I have been successful owning and operating my own business. So I don’t smoke pot…at all. But I did have a few valium (never really take these either but I did so). It was about 6-7 days between last valium I took and the test. It was 10 panel. I always exercise 5-6 days a week, I always take fiber and vitamins and drink water etc. I drank jello day of test as well as water which I always drink. I’m 115lbs, high metabolism and 28 years old. Any suggestions? At this point I’m only waiting for results.


  43. David Jerczak says:

    Hey Bill –

    According to the Mayo Clinic chart HERE, for chronic heavy use, it could take up to 30 days.

    Thanks for visiting.

    Dave J

  44. Bill says:

    I am a smoker who smokes roughly 8 bowls a day. I know, bad. I weigh 160 lbs and am 6’3. I’m curious how long it will take to become naturally clean. Ihave not smoked in 10 days and have quit entirely. I drink about 40 0z of water each day and about 80 oz of Gatoradde each day.

  45. David Jerczak says:

    Kelli –

    You’re dancing a little close to the edge, in my opinion.
    I would get ahold of the ‘Drug Test Friend’ process, info here:

    It is considered reliable for when the stakes are high.

    Thanks for visiting DTT

    Dave J

  46. Kelli K says:

    Long term smoker of pot, quit in mid-June. BUT, I screwed up over the holidays – smoked one joint with 2 friends on Dec. 20th and again on Dec. 28th. Found out this week that I’ve been selected for a new job, which involves a urine drug test. Not sure of the date of the test, I’m guessing January 14th or shortly after. Do you think I will pass?

  47. David Jerczak says:

    Nola girl –

    Yours is a common situation. Don’t beat yourself up too much.
    Sounds like the stakes are high for you. I always recommend the Drug Test Friend process.

    It is considered reliable if used in accordance with the instructions (in exact order and timing sequence) the morning of your test.
    See here:

    You will find a phone number in the upper right corner of the site. They are there for advice if needed.
    The Drug Test Friend folks have been around a long time. Their English writing skills aren’t that good but I believe their product is.

    I hope that helps you.

    Dave J

  48. David Jerczak says:

    B. –

    According to California NORML, it is doubtful that it would show up at all for single use.
    Check this here:

    Dave J

  49. nolagirl says:

    Hi! So I totally suck and am expecting to have an important job interview mid January. I have smoked pretty consistently since I was 16 (now 30) & have been very successful in life. I stopped smoking November 17th, but messed around and gave into some holiday stress this week! I smoked a few hits here and there (no more than a gram in a week). Am I totally screwed? What should I do? Besides obviously knock it off.

  50. b says:

    I have been clean for 5 months and I made the mistake of smoking one rip from a bong I may have a hair test in the next month psycemdics. I was a everyday smoker before I quit for 5 months. will the thc show in the test?

  51. David Jerczak says:

    Renee – I think your dancing a little too close to the edge.
    Drinking large water will deplete the normal level of creatinine in your urine.

    That is a red flag and may render an ‘inconclusive” test result, which in some
    places is as good as a fail.

    See here:

    Thanks for visiting.

    Dave J

  52. Renee says:

    Hi Dave. I had smoked Friday and Saturday. I have a drug test on the 23rd. Before this weekend, it had been a week and a half since I smoked. I am on house arrest so I would be unable to leave to buy any products. Do you think drinking water continuously until my test will work. I am a female of 125 lbs and and im 5’3

  53. David Jerczak says:

    John –

    You won’t be allowed any input on which hair is used for the test.


  54. David Jerczak says:

    Sainteven –

    Thanks for visiting. I think you’ll be OK. As with most things in life -no guarantees.
    You might want to pick up a ‘home’ test kit at Wal-mart (or similar) and see how you do.

    If it comes up positive, then you know you have work to do.

    A negative result, while encouraging, in my mind isn’t enough to rely upon. The labs might
    be a little more sophisticated than the home test kit.

    My old stand-by expression is: If this is your ‘dream job’ -in other words, if the stakes are high;
    if you are emotionally attached to the outcome, pick up a ‘Drug Test Friend’ procedure
    (More info Here:

    It is considered reliable. Use it the morning of your test in the exact order, sequence and timing.
    Don’t wait until the last minute to buy it. There are some things you need to pick up at the store.

    Good luck with that. Again, thanks for visiting.

    Dave J

  55. Sainteven says:

    Hi! So happy I found your site and would love your input:

    I’m a 26 year old male, 5’8 150 fit and walk often everyday. I was offered my dream job, and now
    Am scheduled to take the urine test 3 days from now.

    I last smoked on nov 17th, so will be 4weeks and 2 days since smoking to peeing into a cup. I’m a light smoker, and would only smoke 1-2 times a week, if that. Some weeks would go by not smoking at all.

    I plan on taking midol until the test to pee frequently and take b vitamins day of. Please let me know your thoughts, I guess I just need words of assurance over anything.

  56. John says:

    Hi Dave I have a hair drug test in one month and I haven’t smoked in about four months I wouldn’t smoke a lot it was just a couple of times what part of my body hair should I use and will I come out positive ?

  57. David Jerczak says:

    Hey Ricky –

    Blood test, eh? I’m not aware of any way to clean the metabolites from your blood other than with the passing of time.

    Fortunately, you don’t need as much time as you would if facing a urine screening.
    Here is the skinny on detection time in blood, compliments of California NORML:

    Hope that helps.

    Dave J

  58. Ricky says:

    Hey David my name is Ricky I smoke weed on November 30th and I have a blood test coming soon and I want to how to clean my system and I’m asking you what should I do it this is going to be my first time cleaning my system

  59. David Jerczak says:

    Hi Graig –

    Seems to me that 42 days should do it. No way to be certain, really. You could try a ‘at home’ testing kit. Personally, I wouldn’t place 100% trust in a negative result. A positive result would be good to know.

    The phrase I often use, “if the stakes are high” for you -if it means a lot to pass the
    test, evasive action might in order.

    The Drug Test Friend product is a process requiring the use of certain substances easily
    found in the U.S. It is considered reliable.

    I am not knowledgeable about what is (or isn’t) available where you live.

    If you’re interested, (as you mentioned in your second post), buy the product. If you find you
    can’t use it, ask for a refund. The company (Clickbank) is very good about that. No need to
    stress about a refund.

    There have been many sales of the ‘Drug Test Friend’ process to Australians and Europeans, as well as to North Americans.

    Best of luck with all of that.

    Thanks for your note.

    Dave J

  60. graig says:

    hi dave
    i have a urine test next week for weed.i am a heavy smoker. im 5’11 and weight 90 kilos. i have stopped smoking pot 36 days now.i have done a 15 day detox program and drinks heeps of water.
    do you think i will pass.the date for the test is on 4th dec 2014 which will be close to 42 days since i have smoked any pot.

  61. David Jerczak says:

    Stevn –

    January 1st is still about 5 or 6 weeks away. You should be OK. If the stakes are high and you want some peace of mind, try the Drug Test Friend process (found on these pages) the morning of your test.

    Good luck. Thanks for visiting.

    Dave J

  62. stevn says:

    November 24, 2013 at 10:19 am

    hi there Dave sorry forgot to add more info so re done it for you again
    ime a heavy smoker and have been for past 2 years but I’ve been ask to sit a drug screening on January 1st 2014 from the driving medical group ie dvla in the uk as had my license revoked due to health problems and they got told I smoke cannabis so now I got to sit the test and was just wounding what advice you can give me to help pass the test ime 6ft. 3 weight 15 stone and have a fast meltalisom and drink water regular as well

  63. David Jerczak says:

    Jason –

    You neglected to say how soon your screening is. If it’s sooner than a
    month or so -I would be thinking about taking some evasive action.

    Your weight is a problem in this case. You might take more than a
    month to clean up.

    You might consider trying a home testing kit and see where you are with it.

    If needed, the Drug Test Friend is considered reliable the morning of your test.
    You can find it on these pages.

    Hope that helps.

    Dave J

  64. Jason says:

    Hey Dave,

    I have 10 days since I’ve smoked for a urine test for a pre-employment test I smoked sparingly and am overweight (290lbs) do you think I will be ok after diluting with plenty of water b vitamins and creating before the test


  65. David Jerczak says:

    Hey JV –

    If you truly haven’t smoked in 50 days, I would think you’ll be OK. Chronic users (or should I say regular users) can’t do it 30 days or so, as occasional users can.
    It seems like you should be OK although you must bear in mind, all these time estimates are approximate and vary from person to person.

    Variables are weight, metabolism, amount of pot you smoke, etc.

    If you want to remove All Doubt, use the Drug Test Friend process available on these pages.
    You can use it the morning of the test.

    You probably don’t need it, however.

    I hope that helps you. Good luck with it.

    Dave J

  66. Jv says:

    Hi Dave I’ve smoked weed for about 4-5 times a week and they’re usually small bowls about four hits, and I usually smoke a couple grams every two weeks total. I new I might be having a drug test coming up do I quit smoking about 50 days ago and I took a couple of home tests and passed those. I’ve also been drinking about a gallon of water a day and about gallon of cranberry juice a week, but I’m still nervous about the up coming test

  67. David Jerczak says:

    Steph –

    Thanks for the kind words.
    I edited your question. I apologize -I don’t quite understand what you’re asking me.
    Try running it by me again if you want.

    Thanks again,
    Dave J

  68. David Jerczak says:

    Tobias –

    Here’s something we posted a while ago regarding the EtG/EtS testing:
    Concerning Alcohol Testing

    In addition to a short discussion, there is a link to another resource:
    The Role of EtG & EtS in Court-Mandated Alcohol Abstinence Monitoring, By Paul Cary, Toxicology lab, Univ. of Missouri.

    I hope it’s useful to you.

    Dave J

  69. Tobias Y. says:

    i have been researching drug and alcohol testing and feel i have a basic understanding of detox times and all the variables involved. Alcohol can be detected in a urine sample longer when the EtG method is used vs the “traditional methods”. How common is the EtG method used? Does it cost more money to administer? I am required to abstain from all intoxicants but would enjoy having a few drinks this holiday season. Before i take any risks i would like to hear your input.

    prohibitively yours,

  70. Stephanie says:

    Hey Dave,

    You think I will be okay, even though …. ?

    Dude, your site is so helpful and AWESOME, btw!! Keep up the good work!!!



  71. David Jerczak says:

    Steph –

    Here is an excerpt from the NORML website:

    EMIT is the acronym for enzyme multiplied immunoassay technique, the cheapest and most common drug screen used in workplace drug testing. EMIT testing is typically used by employers as a preliminary drug screen because the test is prone to incorrect results. In general, occasional consumers (as in, once or twice per week) should have little trouble passing an EMIT test – which typically uses a 50 ng/ml cut-off for the THC-COOH metabolite – as long as they have had one or two days of abstinence prior to taking the test.

    See more here:

    Hope that helps.

    Dave J

  72. Stephanie says:

    Hi David,

    I am a 33 year old, 5’5, 180 lb broad who smoked heavily all summer up until Sept 20th. I took one of those at home drug test…actually several..and the passing line is a little lighter than I would like it to be but definitely there. What do you know about the immunoassay testing process? Is it similar to the tests you take at home? I test for my dream job on 11/21. You think I will pass? Test is being taken at a Lab Corp facility. I’ve read online reviews of this place where people talk about how disorganized and unprofessional the staff are and that the facilities are filthy. More than one reviewer has talked about how staff have actually been found to not seal test cups properly, mishandle paperwork and intentionally cause false positives by tampering with the specimens. I can’t even believe that my (hopefully) future employer trusts these people after everything I have read. Needless to say, I am freaking out. Any help would be appreciated. Thank you!

  73. David Jerczak says:

    Sony –

    I think your boss is mistaken. It might take three weeks (or more) to clear your system naturally.
    You might want to consider evasive action. There is information throughout on that.

    Thanks for visiting.

    Dave J

  74. sony says:

    i Have a pre-employment alcohol and drug test in about 8 days from now and will not smoke pot for the next 8 days…my boss said the test will only be positive if i have used in the last 3 days leading up to the test…im gonna detox for 8 days but should i also use some detox drink before i go in or will i be fine..with 8 days detox?? i have been using pot (small bowl) nightly for sleep any tips???

  75. David Jerczak says:

    Mamma –

    It seems to me you are dancing a little close to the edge -in terms of time since you last smoked.
    Generally it takes more time to get it out of your system.

    If it were me, I wouldn’t take a chance without some help -depending upon how much you want the job
    -and to save a ‘black mark’ next to your name.

    I’d go for a reliable tool to get you by. One you can use the morning of your urine screening.

    The one we recommend is Drug Test Friend –found here. Learn more by going there and checking it out.

    You did say you’re not sure what test you might see when you get there. It would be good to know that, for obvious reasons.
    On the Drug Test Friend site (link above), the is a link in the upper right sidebar to “Oral Detox Friend,’ if you think you need it.

    The key for both of these processes, I’m told, is to follow the instructions and timing sequence exactly.

    There is a phone number at that website to use if you have a question or need support after your purchase transaction.
    The phones are least busy before noon (eastern time).

    Good luck with that.

    Dave J

  76. David Jerczak says:

    Gary –

    You didn’t say when your drug test is taking place. Generally, a month will do the trick. Not always. Depends upon a few factors detailed on our home page.

    Thanks for visiting.

    Dave J.

  77. MammaFox says:

    Hello, so heres my situation, I quit smoking about a month ago, then decided to smoke again after two weeks so ive been smoking for about 2 weeks,(at least 1-2 times a day, small sized bowls and with one other person.)

    I have a pre-employment drug test in 3 days and i quit smoking 3 days ago (so 6 days total till the test with no smoking)

    i am 24 and only wiegh 130lbs, with barley any body fat ( though i have had one child so i do have baby fat still)

    and the weed i smoked was pretty strong (not medical just decently strong)

    Ive been drinking a good amount of water, and just started (yesturday) drinking about a gallon of cranberry juice (which im half way through),.. and peeing about every 30 min. or so…

    do u have an idea of my chances of passing,, the job is a deli postion at a local truck stop and the company is “Coleman Oil”

    and i dont know whether its going to be a “swab test” or a “screening” or a actual “drug test” either..

  78. gary says:

    Hi Dave ? I stop smoking poi for 33 days and for good. Have premployment drug test. I’m 5 10 205 will I pass or should I be doing something different. Thanks gary.

  79. David Jerczak says:

    Hey there Mr. X –

    Yup. The random tests are scary. I don’t have much to comment on, really. I think you know where you stand.

    The combination of the weak weed and the large amounts of liquids, etc., combined with your build …maybe it’ll
    come back inconclusive, as if you flushed too much and have a low creatinine level; in which case you would want a re-test.

    That would give you time to avail yourself of the Drug Test Friend process on this page. it’s considered reliable.

    Good luck. If you would, I’d be interested in knowing how you made out.

    Thanks in advance.
    Dave J

  80. Mr. X says:

    I’ve been smoking very weak homegrown that never reached maturity for a month.I stopped smoking it about 8 days before an unexpected test.The pot barely does anything but take away the edge.I’m 56 and have been smoking since I’m 12 regularly.I’m 5-7 138 lbs no body fat whatsoever,active take vtamins,drink gallons of fluids peeing all the time(prostate issues) I’m guessing from past urine tests I have a 75% chance.However that was testing 10 yrs. ago.This was sent to MEDTOX Labs they have been testing since 1988! Give me the bad news. :(

  81. David Jerczak says:

    Cali Girl –

    Thanks for visiting. I don’t know your circumstances enough to know if you should be forthcoming about your use of medical pot.

    If you were a truck driver, for example, or worked in an industrial setting, or a nuclear power plant -they would not care if
    your doctor recommended it or not. They would not look favorably upon it -at all.

    To your second question -a matter of days is not enough time to get it out of your system. Flushing doesn’t help much and most
    labs are sophisticated enough to know you flushed and will call you on it.

    Again, not knowing your situation, I can tell you that if the stakes are high; if failure is not an option, I’d go with the
    ‘Drug Test Friend’ process available on this website.
    It is considered reliable if the instructions are followed exactly and with the proper timing, and can be used the morning of your test.
    There is a phone number there for support if needed. If you call, I’ve been told the best time to get through is before noon eastern time.
    See here: Drug Test Friend

    I hope that helps you.

    Dave J

  82. cali girl says:

    I live in a state that has legalized medical cannabis and have a doctor’s recommendation to use it. I have a urine test in 3 days and haven’t smoked in 5 days (8 by the time the test is administered). Should I let the person administering the test know about my medical status or do you think that if I try flushing, it should be out of my system by the time I take the UA?

  83. David Jerczak says:

    Dante –

    Check this:

    It seems like you may be dancing a little close to the edge at 80 hours.

    Good luck to you. Thanks for visiting

    Dave J

  84. Dante says:

    Dave, I have to go in for an etg urine test every week. Is 84 – 86 hours clean sufficient? Need to know asap. Testing Wed 9/16

  85. David Jerczak says:

    Tony –

    Hair Test Friend is considered reliable.
    Find it here:
    Then look to the right sidebar for ‘Hair Test Friend.’

    Follow the instructions precisely. Support can be found at the phone number in the upper right sidebar. Less traffic before noon eastern.

    Thanks for visiting us here.

    Dave J

  86. David Jerczak says:

    I think you should be fine, then, Chris. 90 days is way out side the envelope.

    Dave J

  87. Chris M says:

    Hi Dave, I stopped smoking pot on July 4th and have a drug test on October 9th. I’m 5’11” 255lbs and have a quicker metabolism. Should I be fine for the test?

  88. Tony says:

    Hey, I consume like 2- 3 beers on sept 7 & shot of tequila on the 14 of Sept. and i have an ETG DRUG HAIR TEST within NOV 1-7 .WHAT SHOULD I DO?

  89. David Jerczak says:

    Hey Brandan –

    Thanks for the note. You opened my eyes to something that needs to be clarified.

    The reference I quoted is the Mayo Clinic table for approximate detection times.
    See it here:

    It is the metabolite ‘Benzoylecgonine’ that is detectable for about 5 days. Benzoylecgonine is
    like a fingerprint, in that the only way it can appear in your system is through the use of cocaine.

    Cocaine itself lasts only a day or less. It doesn’t matter. The urine screening lab is smart enough
    to look for the metabolite.

    Thanks for bringing it to my attention, Brendan. I’ll clear that up on the appropriate page of the website.

    Dave J

  90. Brandan says:

    Hey Dave

    I was reading about cocaine being in the system for 3-5 days in the urine but according to you it is only 24 hours, which one should I believe?

  91. David Jerczak says:

    Steph –

    According to the Mayo Clinic ( hydrocodone remains in your system about 3 days.

  92. Steph G says:

    I have taken hydrocodone 10/325 at about 2 per day for about a year. I have a 10 panel drug test coming up. My question is is 10 days long enough without taking a hydrocodone to pass the urine test?

  93. David Jerczak says:

    George –

    Pls refer to the note I wrote to Michelle, dated 8-21.

    If you’re being tested for EtG/EtS, it might be difficult to fool, as the substance shows up in hair, fingernails, blood and urine
    for up to 3 or 4 days. There have been some legal challenges, as noted in the article referenced in the note to Michelle (8-21).

    Dave J

  94. David Jerczak says:

    Yes, Michelle –

    Thanks for visiting.

    I hate to break this to you but, EtG/EtS (Short for Ethyl Glucuronide and Ethyl Sulfate) are markers left behind from alcohol.
    It is detectable in blood, urine, hair and fingernails.

    Read more here in the Hubpages article I posted awhile back:
    What is EtG/EtS Alcohol Testing?

    Best of luck to you.

    Dave J

  95. Michelle says:


    I have an EtG test today and drank yesterday. Will that process work for alcohol too. I don’t use any other type of drug.


  96. George says:

    I am starting to get alcohol UA’s the morning after I go out. What can I do while I’m drinking to get the alcohol out of my system by the next day? I heard it’s recommended to drink a glass of water for every drink you consume? Or drink a large amount of water before going to bed? Is any of this true?

  97. David Jerczak says:

    Hey Micheal –

    You didn’t say what kind of test you are facing and it makes a difference.
    If there’s a doubt, check out the Drug Test Friend process found on this
    page (above). It is considered reliable.

    I’m sorry I don’t have another remedy for you.

    Dave J

  98. Micheal says:

    Hey I took a 10 mg Valium Saturday night I have a drug test coming up today is Wednesday and it’s still in my system what can I do

  99. David Jerczak says:

    Jenny –
    Thanks for the message. Very good advice you offer near the end.

    Your time frame is a little over a month -that is usually enough time.
    However, as you know, it is different for different people. Your self-described weight and metabolism
    might make you borderline at risk.

    If it was me, I’d go ahead and get the home test kit. Try a couple different brands. Remember -the real
    test and its lab may be more sophisticated than the home test kit. We don’t know so don’t get a false
    sense of security if you test clean. The main purpose of the home test kit is if you test positive -it’s
    good to know in advance.

    If you do (and, as a precaution even if you don’t test pos), I would err on the side of caution and pick
    up a ‘Drug Test Friend’ process. It is considered to be reliable. Here:

    Going forward, try and heed your own advice that you dispensed so eloquently.

    I am told the key to the ‘Drug Test Friend’ process is to follow the process sequence in the prescribed order
    -and with the prescribed timing on the morning of your test.

    If you go there, look in the upper right sidebar for the telephone number. It is there for support. I am told
    the best time to call is in the morning before noon. After that, until about 8PM est, the phones are busier.

    Best of luck with that.

    Dave J

  100. Jenny M says:

    Hey Dave!

    The last time I smoked marijuana was August 5th 2013. I have to have a urine drug test done by September 10th 2013 for my program in college. I smoked fairly heavily (generally 3-4 bowls a day) since the beginning of May this year (2013) with the weed varying in quality. My boyfriend says I should just drink a lot of water every day and work out, but I’m worried that I’m going to fail and get kicked out of school or my program. I’m a female, 5’8′, 220lbs (unfortunately gained 10lbs this summer smoking), and I probably have a slow to moderate metabolism. I’ve been considering buying into a detox program, but I really don’t want to waste my money. I hope you can understand my skepticism! Am I safe sticking with just H2O and exercise or should I invest in something that should clean me out? I’ve also wanted to buy an at home test or two and would love to know a reliable brand! When I get drug tested, the tester doesn’t enter the stall with me and last time, she turned on the faucet. However, I do not want to try and sub or add anything to my urine! Any advice would be great!

    Also, to any one reading this out there experiencing the same thing, just stop smoking or whatever you’re doing. It sucks, but if I could go back and stop earlier, I would have. Every day I have a horrible sinking feeling in my stomach and it isn’t worth it! I enjoyed my bud for longer than I should have and now I might have to pay the consequences. Don’t be greedy guys. I think some things (at least MJ) will be legal eventually :)

  101. Dyllon says:

    So I have a urine test just for a physical coming up in 4 days that will make me 23 days clean the day of the test, I smoked for a couple months on average of a couple grams a week but its + or – but on average a couple grams a week and smoked a few times a day of high grade Mary, I am 16, 6’2″ and weight about 215 with a little fat but more muscular than anything, I run a mile almost everyday and go swimming from 1 hour to 3 hours a day and don’t eat a lot of junk food, do you think I will be safe for passing my test, also I have been drinking quite a bit of tea 2 gallons in 3 days and a lot of water so I am peeing plenty, please respond so I stop being paranoid please!

  102. Lucas says:

    Hey, would anyone be able to tell my if it is possible to freeze clean urine and use it for a future drug test? Could it be detected if anything changes in it. Ive been told that it should last for up to 6 months but I need a more reliable source. thanks

  103. David Jerczak says:

    Dustin –

    From what I gather, K stays with you (more accurately, the broken down form of it) for quite a number of days -maybe 7-14.
    Not knowing what the variables are, it’s difficult to say.

    You didn’t say, and I don’t know if your upcoming test is looking for Ketamine of other stuff.
    Normally, it is not something a normal screen would detect. It has to be a special screen to detect it.

    You also didn’t say if it’s a blood test or urine (or, what).
    Sounds like you may be a little close to the edge.

    If you are doing a urine screen, I would consider trying the Drug Test Friend process (found on our homepage near bottom).
    It is considered reliable.

    Good luck with that.

    Dave J

  104. dustin says:

    Hello i have a drug test coming up in a week, ive last time i have used is monday.. i used ketamine, im a heavier guy weigh about 250 its safe to say my metabolism is slower but ill have 8 days clean.. do you think thats enough time to pass? Thanks

  105. David Jerczak says:

    Annette –

    If it were me, I wouldn’t take a chance without some help -depending upon
    how high the stakes are -i.e. whether or not you can afford to fail the test.

    To be sure, I’d go for a reliable tool to get you by. One you can use the
    morning of your urine screening.

    The one we consider reliable is the Drug Test Friend -found here: Drug Test Friend.
    Learn more by going there and checking it out.

    The key, I’m told, is to follow the instructions and timing sequence exactly.

    There is a phone number at that website to use if you have a question or
    need support after your purchase transaction. The phones are least busy
    before noon (eastern time).

    Good luck with that.

    Dave Jerczak

  106. David Jerczak says:

    David –

    Anything you’ve consumed over the past 90 (or so) days can be detected in your hair.

    See the article on hair testing on this site (look in the right sidebar).

    Dave J

  107. David Jerczak says:

    Stacey –

    It is widely known that the labs are highly sophisticated and can usually detect foreign substances in urine samples.
    While adulterating the sample might mask the drug metabolites, the detection of the foreign substance (vinegar, in your case)
    will put you into the FAIL category.

    A more reliable approach can be found here: Drug Test Friend

    Good luck to you.

    Dave J

  108. David Jerczak says:

    Mike –

    Thanks for your purchase. The phone number you’re seeking is located on the sales page where you made the purchase.
    See here: Drug Test Friend

    The Drug Test Friend is known to be reliable. Good luck with that.

    BTW -I’m told that the phone lines jam up by noontime (Eastern Time) -tapering off about 8 PM.
    Best time to get through is in the morning.

    Dave J

  109. David Jerczak says:

    Vic –
    Hydrocodone is purported to stick around for 3 days (or so). That figure is a guideline -not carved in stone.
    Seems like you might be dancing a little too close to the edge.

    Consider the Drug Test Friend process available on this website.
    Learn more here: Drug Test Friend

    Good luck with that.

    Dave J

  110. Annette C. says:

    Hi Dave,
    I have a drug test on this upcoming Monday, and I took a two-day detox on Tuesday to Wednesday, and have been drinking a lot of water and cranberry juice, along with eating fruit. Do you think I will be okay?

    Please respond soon!!


  111. Vic says:

    I took 2 hydrocodone (lortab) Today at 3:00 (7/12/13). Drug urine test on July 16 at 9AM for pre-employment. I have a sauna and 48 hr acai detox that i plan on doing. As well as drinking a lot of cranberry juice. Am I ok? What should I do?

  112. Mike says:

    Hello Dave,

    Thanks for all the info. They were very helpful.

    I just purchased the Urine Drug Test at Drug Test Friend; however, couldn’t find any number to contact them for more advises like the advertising. Please help !

    Anyway, here’s my situation, I am not a heave smoker at all. I began smoking 3 months ago, 3-4 times a month. Everytimes, it was just a couple of hit from a joint with my friends. I stopped smoking one month ago. However, I smoked a couple of hit 10 days ago.

    I need to have a pre-employement drug test sometimes next week, and I hope to buy me sometimes til Friday. So, I wonder if the THC still be in my body.

    I’m nervous because I need the job. I’ve been exercising and drinking a lot of cranberries juice. Perhaps, I will buy a in-home drug test tomorrow to try. Hope the Drug Test Friend Formula will help me pass.

    Wait to hear your feedback. Thanks !


  113. stacey says:

    putting 5 / 6 drops of vinegar in a sample after peeing 3 times is this good …

  114. David says:


    I have just got handed probation, my question is they will ask for a Hair Follicle Test next month and I don’t do drugs but I do consume alcohol here and there. In the past I wouldn’t drink 2-4 prior a drug test and it would workout but with a hair sample I’m not sure. Will or will it not show up, that is my question.



  115. Jill says:


    I am stressing my drug test I have not smoke marijuana in months and I took maybe a total of 8 hits on my birthday weekend a Saturday and Sunday and had a drug test that Wednesday, which I was unaware of. I took an at home test which says they test at 50/ng also the lab that does my tests will test at 50/ng as well, anyways I passed it. I am very hesitant and not sure if I could pass in 3 days have you ever heard of this? At one point I was a chronic heavy user and passed a test in a week. I just wanted a little backing up and reassurance or even it’s not possible at all.


  116. David Jerczak says:

    Lynda –
    I’m not familiar with the firocet. Depending upon what it is -the detection time may range from 3 to 15 days according to the Mayo Clinic. See here:

    The Drug Test Friend process is one of the most reliable to pass your drug test. If you need it, find it here:

    Drug Test Friend

    Thanks for visiting

    Good luck to you.

    Dave J

  117. Lynda says:

    Hi Dave I have t take firocet pretty regular for headaches. Since it is a barbutica what can I do ? Or what are my chances of getting hired ?

    hanks Lynda

  118. David Jerczak says:

    Tim –

    Seems to me you should be all right.
    As you know, what I think means nothing
    -since everyone is different in terms of weight, metabolism, etc.

    There is no way to predict although the 60 days seems safe enough.

    Thanks for visiting.

    Dave J

  119. David Jerczak says:

    I, personally, would not fool around, Take a look at the Drug Test Friend process.
    If you follow the instructions exactly, the authors say, you can pass your test.

    They are there to speak to by phone if you need advice.
    See the Drug Test Friend here: Drug Test Friend

    Thanks for visiting. Good luck with that test.

    Dave J

  120. bshea says:

    I have a blood and urine screening tomorrow i took a 10 mg loratab yesterday i am 5’7 and about 135 pounds do you think it will be detected

  121. Tim says:

    Hi Dave. Im chronic heay user of weed. I stop 23 days so far . RMV wants urine test in 60 days. I am fat do you think golden seal will help me+flushing with water.+activated charcoal. please help.thank you Tim.

  122. David Jerczak says:

    Fluxed –

    I’m not familiar with the laws in every state.
    And, I’m not familiar with your circumstances.

    I wouldn’t trust any authority -there’s no telling what they might look for.

    If it were me, I wouldn’t chance it. It’s always a personal decision, though.
    We all must weigh what’s at stake and how emotionally attached we are to the

    I’m sorry I can’t help you more than that.

    Thanks for spending some time here.

    Dave J

  123. Girl says:

    Hey David-
    I am currently only doing U.A.s for alcohol. I have not had a drop of weed in 30 days and alcohol for a week and a half. You think its still ok to smoke weed? I don’t want to risk it incase they change my sentence in a month and a half. However, if they only test for alcohol, is it illegal for them to test for anything else without my consent? thank you for your time-disclosed identity

  124. David Jerczak says:

    Johnny –
    Three weeks might well be enough time -it was for me once.
    However, as you noted, there is no way to be sure.

    You might want to try a home test kit. If that shows positive,
    you can probably take that at face value. However, I don’t know if
    I’d trust it if it said you were negative.

    I think the labs are more sophisticated than the home test kits.

    Good luck with that.

    Dave J

  125. Johnny says:

    Hi, I smoke maybe 6 or 7 times a month if that, I am in high school so it isn’t very consistant. However, it is in very small amounts and only one smoke session when I do decide to do it(probably about a half a gram each time I smoke, I know it’s not a lot). The last time I have smoked was May 27th. My test is anywhere around June 20th. I have been drinking a lot of water and I have a fast metabolism and I only weigh about 135-140lbs. I am above average with physical activity. I know there is no way to know for sure but atleast an opinion from someone with as much knowledge as you have on this subject will do some good. Do you think 3 weeks will be good enough for me to pass?

  126. David Jerczak says:

    Gabriell –

    It’s always tough to predict, as you know.

    If it’s any comfort to you, I was smoking with
    friends several years ago during the Christmas holiday season.
    I wasn’t concerned because I’d never been subject to a
    urine test before.

    My employment situation changed and by early January I was looking for work
    -which I found in one of the northeast nuclear power plants, not unlike
    your Calvert Cliffs. On Jan. 11th I tested and was nervous about it. I got
    through it alright, though.

    It seems like about the same time span as you described. I wouldn’t stress out too much.
    You’ll probably be OK.

    Either way, it’s beyond your control now.

    You might want to consider your Plan B -just in case. You know, damage control, and all that.
    If you fail at a place like Calvert Cliffs, they should offer you the Employee Assistance Program.
    Your reputation may be tarnished but you’ll still have a job.

    Good luck with all that. Again, try not to stress -there’s a pretty good chance you’ll be fine.

    Dave J

  127. Gabriell says:

    Hi, I had taken my drug test on the 28th of May. I smoked 17 days before that and had used the flushing method to help me out. I have a very high metabolism, am 5’3 and weigh 116 pounds. Even though I had time to hide the THC, I fear that I may have failed Ben of by just a little bit. I haven’t hear anything from my employer or the department that recieves the test results. This makes me even more nervous. I rarely smoke and I hadn’t smoked for almost 5 months before the bowl I hade 2 weeks before the drug test. Do you think there is a chance I could have come up positive? I appreciate the help.

  128. David Jerczak says:

    Hi Katy –

    Alcohol, per se, does not show up in a hair test. Substances called EtG and EtS are left behind by alcohol (after the alcohol disappears) and is detectable
    in urine, blood, fingernails and hair samples.

    Sometimes parents test for it to see if the kids are on the straight and narrow. It is sometimes used to see if anyone in alcohol treatment programs have fallen off the wagon.
    The results of this type of testing have not been used for legal purposes in recent years. It is too sensitive and can show positive for use of over-the-counter stuff, including
    hand sanitizing solutions.

    For more info, check this article I did on Hubpages:
    Alcohol Testing

    Thanks for the note, Katy.

    Dave J.

  129. katy says:

    Hello, so I’ve read the whole website this may be a really stupid question but can alcohol be found in a hair test?

  130. David Jerczak says:

    According to the Mayo Clinic, heroin is rarely detected in urine.
    See here: Mayo Clinic

    Dave J

  131. coco says:

    Hi david, my friend used heroin on a Thursday he injected it, and had a urine test for probation that next Monday, he drank lots of water and also worked out during those couple of days, do you think he has a chance of passing ?

  132. David Jerczak says:

    Thanks for your comments, Cody.

    For Goldenseal, there is all kinds of information about it around the internet.

    I don’t have any personal experience with it. What I can tell you is something you may
    already know -there is no shortage of websites that want to ‘guarantee’ you’ll pass a
    drug test with their formula, many of which make use of Goldenseal among other things.

    I cast a jaundiced eye on such guarantees. I have seen some home remedies (formulas, really)
    made up of stuff you can commonly find in the store.

    It seems the real crucial knowledge is not only ‘what’ to use, but how and in what order or sequence.

    The people at ‘Drug Test Friend’ that I have become familiar with claim those who mess it up do so by
    not following the instructions exactly. Remember that, regardless of what product you buy (if any).

    The people at Drug Test Friend are there to consult with, should you need their assistance.
    (Drug Test Friend can be found at the bottom of the right hand sidebar listed under “Recommended Reading”)

    Thanks for visiting and spending some time here.
    Good luck to you.
    Dave J

  133. Cody says:

    Hey David, this site has been pretty darn helpful, but I do have a couple questions. First, your chart for drug detection times for Weed, seems off to me from what Ive always been told about the time it takes to remove itself from your system. Ive always heard it takes a minimum of 30 days, even with a fast metabolizm and low body fat %. I understand that your sorces for that information are probably more trustworthy than my own tho haha. If for the last couple of months, I have smoked every day, a couple times a day, would i fall into the heavy use catagory, or the heavy chronic use? I havent smoked in about 5 days due to a know upcoming UA. My second question, is in regaurds to the herb Golden Seal. Im familure with the herb, been used in my family since i can remember for simple first aid. How should I use it in helping me detox? thanks for any help you can give me.

  134. David Jerczak says:

    You know, Angela, it’s hard to say. Which is why you’re freaking out.

    Good luck with that one.

    Dave J

  135. Angela says:

    So I had a mouth swab drug test yesterday .. I smoked weed the night before at about 8 pm and did some cocaine two days before . I gargled with hydrogen Paroxide the night begore and about 30 minutes before the drug test. I haven’t got the results back yet do you think I will pass? Any answers would help I’m freaking out

  136. David Jerczak says:

    Tyler –

    As you probably know, there are a lot of variables. If you’re under 150 lbs.
    like me, it might not be much to be concerned with. If you are a guy with a
    lot of heft, it might take longer.

    If it was me (at risk of over-using this phrase) and the ‘stakes were high’
    -if there is a lot riding on the outcome, I wouldn’t fool around.

    The ‘Drug Test Friend’ process seems to me to be a logical and straightforward procedure.
    You have some time to gather the ingredients (they are readily available).

    I would go that route and erase all doubt.
    The caveat here is -don’t roll the dice by smoking anymore.

    If you lose your job it will be an expensive buzz.

    I’m sure you know that.
    Thanks for the note.

    Best of luck.

    Dave J

  137. Tyler says:

    Hey there. I have an opportunity to go work in Alaska starting in the beginning of June. Unfortunately pre job screening is required. I smoked around five times a week until April 30 for 5 months. And since then I only smoked twice last weekend the last day being may 10th. I have about two weeks to detox. Is flushing my system a safe way to go about it?

  138. Peaches says:

    Thank you for your quick reply. I will try that.

  139. David Jerczak says:

    Peaches –
    Thanks for the note. I think I sense your urgency.
    I wouldn’t fool around.
    I would go for the ‘Drug Test Friend’ process.

    Follow the instructions exactly.
    See it HERE

    Dave J

  140. Peaches says:

    My husband tested positive on his last drug test, however, he was called back to work. We are thinking they will drug test him when he goes back tomorrow. He smoked crack yesterday. What can we get to make him pass the test? Thank you.

  141. David Jerczak says:

    Jake –

    It is tough to answer a question like that. On the face of it, you might be OK.
    Five days is not a lot of time.

    Depending upon what you’re testing for (employment, probation?)-meaning, how high the stakes are, you might want to consider
    raising the urgency level a couple of notches and try the ‘Drug Test Friend’ process.

    As I said to Miguel (here), there are no guarantees but you certainly can sway the odds in your favor.
    If it was me, I would, to the extent possible, eliminate any chance of failing the urine test.

    Once tagged for a failed drug test, as you know, it’s difficult to recover. I have often used the phrase “when the stakes are high.”
    I’m trying to think of a situation where the results of a drug test are not high stakes and I can’t think of one right now.

    See this page here:

    Thanks for the note and for spending some time here.

    Dave J

  142. David Jerczak says:

    Miguel –

    I believe your best chances lie with the Drug Test Friend program -which I have detailed in these pages.

    As you may know, there is a lot of information out there giving advice on the topic.
    Having spoken to the author of this product, I am convinced enough that -if I needed something along those lines, it would be my choice.

    There is, however, few guarantees in this life. Regarding drug testing the only guarantee is abstinence, as you know.
    See this page: Drug Test Friend

    Thanks for visiting and for the note.

    Dave J

  143. Miguel Avila says:

    What can i do to get it out of my system in less then 3 day’s

  144. Jake Meyers says:

    Hi, I have smoked no more than 10 times in the last month. But I smoked 3 days ago, and I smoked about 3 times. I have a test coming up in like 5 days. Im skinny, around 18 years old and have a fast metabolism. I Have been drinking as many liquids as possible.
    How do you think I will do in that test coming up in 5 days? any tips would be great

  145. David Jerczak says:

    Hi Joe –

    I am certainly not an expert. From your note, though, it doesn’t sound too promising.
    If you were talking about a urine test, then you would probably have enough time to purge your system.

    Please let us know how you make out. These hair sample test are problematic when they are sprung on us.
    Someday we hope there is a test that can detect if someone is under the influence, much like with alcohol.

    That will free people up to do what they want on their own time.

    Thanks for the note.

    Dave J

  146. David Jerczak says:

    Hi Tom –

    I wonder myself. I suppose it might hinge on how long your hair is and how far back they look.
    If it’s true they’re only interested in the past 90 days, if they don’t test any longer hair, you might be OK.

    Please let us know how you make out.

    Thanks for the note.

    Dave J

  147. Joe says:

    I have a hair test coming up I smoke maybe 3-4 hits on the weekend close to every weekend but not always, and the hair test is possibly 2-3 weeks away max. What do you think my chances of passing are?

  148. tom says:

    I’ve been ordered to take a hair test that goes back 90 days. I have been drug free for the last 5 months other than smoking synthetic weed and having to occasional beer. Its not a government drug test but should i be worried about.failing?

  149. David Jerczak says:

    Thanks, Jill, for your comment. The thing I think everyone is striving for is to get a test that will detect impairment -at the moment -which I think saliva will.
    That would free people up to do what they want on their own time -as long as they show up for work fit for duty.

    Dave J

  150. Jill says:

    I do not know if saliva test is more accurate than urine test or just detects for most recent use. Maybe doing saliva test soon and find out. I’d never heard of it until recent interview and started looking into it. Good info.

  151. David Jerczak says:

    Thanks for the note, Phyllis –

    Saliva or oral fluids, as they say, are able to detect usage immediately and up to three days later, in the case of THC.
    THC in urine doesn’t show up until later -up to three hours later.

    Dave J

  152. Nuclear Phyllis says:

    I read recently there is quite a bit of testing activity in prisons across the country. Seems funny there would be drug use in prison. There is a lot of urine and saliva testing going on.

    Is saliva testing more accurate than urine testing?

    Brattleboro, VT

  153. Dave Jerczak says:

    Hi Joy –

    Sometimes we get lucky. I smoked weed at Christmas one year and had a piss test on Jan. 11.
    I, too, was nervous. I got through it somehow.

    Good luck to you. Come back and let me know how things go.
    Thanks for the note.
    Dave J

  154. Joybelle S says:

    Hello –

    I had to do a urine screening at work. I was really nervous because I had smike with friends about two weeks prior and knew I might be borderline.

    Anyway, if there was a trace in my system they didn’t see it or, they let me slide.
    You can see how nervous I was -I read your website.

    Thanks for being there.

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