How to Pass a Drug Test? Drug Testing 101

The High Times Ultimate Guide to Pass a Drug Test. We surveyed and investigated, so you can pass your drug screening.
How to Pass a Drug Test in 2019 from High Times Ultimate Guide Series

1. Know What Type Of Drug Test You Are Taking

By far, the most common type of drug test is still urine analysis. This test can be performed privately at the workplace (you are given a test strip and sent to the bathroom), or employers can send you to a 3rd party lab to submit your urine sample, in which case the test might be monitored by a lab employee. Although less common, certain employers use hair, blood, and saliva testing to detect the presence of drugs in your system.

2. Know What Types Of Drugs Are Tested For

Marijuana—THC, CBD, oils, tincture and, yes, edibles—can all be detected on a drug test.

Other drugs that are regularly tested for include: cocaine, amphetamines, opiates, phencyclidine (PCP), MDMA, barbiturates, benzodiazepines, and propoxyphene.

3. Know How Long Marijuana Stays In Your System

As you probably already know, everyone’s body reacts differently to marijuana use. Main factors include when you last partook, how often, potency, body fat, weight, and metabolism.

If you are a regular user, marijuana can stay in your blood and urine as long as 90 days after usage. On average, most people in good health can usually get clean in 30-45 days. If you smoked once over the weekend with a friend, for example, pot can be out of your system in as little as two days, although on average it can take up to 10 days. Most other drugs can stay in your system for a few days up to a month in extreme cases.

Hair tests can detect THC and other substances in your head and body hair for months or even years after usage, depending on the test—although most labs take a 1.5-inch sample of head hair, which detects usage back roughly 90 days.

4. Know The Risky Options When Attempting To Pass A Drug Test

There is a lot of misinformation out there about the following options for passing a test and most of them are very risky, dangerous to your health, detectable by testing labs or simply don’t work.

Home Remedies – niacin, bleach, Certo, vinegar, Goldenseal, cranberry juice: Don’t Work and Dangerous

Synthetic Urine – Using synthetic urine for your test: Risky

Dilution – Diluting your sample with an adulterant: Detectable

Substitution – Substituting someone else’s urine for yours: Risky and Detectable

5. Know Your Options When Cleansing Your Body For A Drug Test

The safest and most common way to pass a drug test is to cleanse your body of drugs and be clean for your test.

Detox Naturally

If you have 30-45 days before your test, you can usually cleanse your body of marijuana by abstaining from use, lots of liquids, diet, and exercise. Your body’s own detoxification process will cleanse your blood and urine naturally over time. THC is fat soluble, which means the traces of it are stored in your fat cells and remain in your system over time depending on the factors we listed above. If you are going to cleanse naturally, actual diet and exercise are highly recommended.

Cleanse Using a Detoxification Program

If you have at least seven days before your test, a detoxification program will speed up the body’s natural cleansing process and can help rid your body of the THC in your system in about a week. These programs also come with home testing kits to verify you are clean.

Cleanse the Same Day

If your test is coming up sooner, certain detoxification drinks are known to flush your system the same day you drink them keeping you clean for a period of four to six hours.

According to Thomas Dobie, who used to work in a drug testing lab, you’d have to be an idiot to fail a drug test for cocaine. “Cocaine, honestly, if you do it infrequently — maybe on a Friday night when you go out with your friends — it’s only in your system for 24 hours,” he says. A chronic abuser would have the drug in his system a little longer than that, Dobie estimates, perhaps 48 to 72 hours. (Most available resources support his claims, although a few suggest that a very heavy user could have evidence of the drug in his or her system for 10 to 22 days.)

There are a lot of idiots out there, though. Some of them, in fact, are trying to get into the drug-testing business. Dobie worked for Kroll Laboratory Specialists, a Gretna, La., drug-testing lab. He recalls a time when a prospective co-worker failed a pre-employment drug test. “We had someone come in an interview with us and they were a great candidate — great GPA, came from a great university, and they failed for cocaine.” Dobie figures the candidate had probably done cocaine very shortly before the interview. “If you’re going to get a job at a drug-testing lab, and you do cocaine the night before, you’re the biggest idiot I’ve ever met,” Dobie says.

Don’t Do Drugs

That goes for the rest of you, too. The best way to beat a drug test is simple, cheap and easy: Don’t do drugs in the weeks leading up to the test. And there’s a pretty good chance you’re eventually going to have to take a drug test. According to a 2004 American Management Association (AMA) study, 61.8% of companies surveyed said they test employees for illegal substances. Some might say that’s for good reason, as three out of every four current illicit drug users in the United States are employed, and companies are losing roughly $81 billion a year in lost productivity due to drug use, according to the Department of Labor.

While random tests are common at some employers, particularly in safety-sensitive industries like transportation, you’ll most likely get sufficient advanced warning about a drug test. According to the AMA study, 52.5% of workplace drug tests are used to make decisions about hiring an applicant, and 8.5% are used in decisions to assign or reassign employees.

How Long Does Weed Stay In Your System?

Marijuana will stay in your system the longest and will require the longest period of detoxification. Depending on the source of your information (and there are many available online), marijuana can be detected in your system for a few weeks and up to a couple of months (12 weeks was the most generous number we found) after last use.

As with most drugs, it will remain in your system longer with habitual or chronic use. Dobie estimates that a typical, frequent marijuana user will have evidence of it in his or her system for about three weeks. So, erring on the extreme side of caution, it’s probably best to refrain from smoking pot three months prior to testing. Also, it’d be a good idea to remove the picture of you doing a bong hit from your FB profile.

How To Pass A Drug Test (Other Ways)

If you’ve decided to smoke, snort or inject yourself silly regardless of impending tests, there are other ways to pass, and those fall into two main categories. First, you could alter your own sample by flushing your system of the evidence of drug use or by adding something to your urine in the time after you pee into a cup, but before you hand it in.

Second, you can use urine that isn’t your own. During his time at Kroll, Dobie saw his fair share of altered samples. The laboratory would catch many of them. So, consider this a lesson: Don’t just add something to your urine, especially if that something is an everyday household product. Regardless of what that dude you smoked with last Saturday night told you, more times than not, you will get caught. In fact, a sample with additives will often be apparent to a tester’s naked eye. “I don’t know what the hell they put in it, but they’ve given us purple and green pee. I mean, it’s ridiculous. People will add anything, they’ll try vinegar. They’ll add anything under the sun,” Dobie says.

Soap And Bleach To Pass A Drug Test?

Some people believe that soaps, particularly dishwasher detergent, will make a sample test negative. In reality, it may doom you from the start. Even if something like detergent doesn’t change the color of your sample (which would almost certainly raise a red flag), it may cause it to bubble when transported or transferred to a test tube. And obviously, a scientist will be suspicious of bubbling piss. Any such irregularities in a sample would require additional tests. “We had a special test to see if there were any surfactants (such as dish detergent) in a sample,” Dobie says.

Oh, and bleach won’t help either. It’s likely that scientists will know you’ve added it, and besides, Dobie says you’d likely still test positive for the original drug use. “It’s not going to do anything. You’re still going to fail.” As for that dude, you smoked with on Saturday, his story isn’t necessarily bogus. There is some chance that an additive will work. Dobie recalls a sample that testers believed to be positive, but an unknown substance prevented a positive confirmation. “We knew damn right they were positive, but we couldn’t get it within the right limits to actually legally confirm it,” Dobie says.

Instead of trying to mask a urine sample that will likely test positive, you could try flushing your system of the toxins that cause a sample to be positive in the first place. In other words, drink lots of water before your test, and urinate frequently. Many drug-test veterans we spoke to suggested that this was the best way to pass a test.

Over The Counter Drug Testing Kits

One employee of a major Hartford insurance agency suggested a special drink, available at stores like GNC. It’s one of many products that promise to help the “flushing” process along. A visit to a GNC and a Vitamin World at the Westfield Shoppingtown Mall in Enfield found such a product, along with pills and special shampoos (for hair tests). It’s best to find the products yourself, as store clerks would not help us when we specifically asked for drug-testing products. You’ll know when you’ve found the right stuff.

A college student from Westchester County, NY, swears by some pills he bought at Mrs. Greens Natural Market, which he took along with copious amounts of water and topped off with one glass of milk.

“I smoked marijuana basically every day until five days prior to the test and then I took the pills the day of the test,” the 20-year-old, who was looking to work last summer as a wine clerk, says. “After a few weeks went by, I found out that I got the job.” Dobie isn’t sure which products work and which don’t, but he does say it is possible to flush your system enough to avoid failing a test. “If you do habitually smoke marijuana, and you’re told you’re getting tested in two days, then hell, in my situation, I’d try everything there is out there and flush my system as much as I possibly could,” he says.

Before A Drug Test, Flush Your System, Rid Of THC

However, whether you just drank lots of water or juice, or supplemented that process with something from your friendly neighborhood vitamin store, it will likely be apparent to drug testers. Your urine will be clear–and that’s a sign that you’ve flushed your system. Such a sample may also be flagged for additional tests to make sure it isn’t just water.

So, while flushing your system may save you from a failed test, it doesn’t necessarily mean you’ll pass, either. Regardless, you’ll likely have more time to detoxify before a retest, although that retest may be stricter and more closely monitored. “It’s a little suspicious, but chances are they can’t fire you unless you really test positive,” Dobie says. For the really brave (or really desperate), you can also try submitting a sample of someone else’s (presumably drug-free) urine. If you’re able to pull it off, it’s the most dependable way to pass the test.

After all, a scientist like Dobie just sees a sample in a test tube. There’s no test to match the piss to the pisser. “If you can just tape some kind of test tube with a friend’s urine in it to your thigh so it’s about as warm as your natural body temp, then you’re going to pass,” Dobie says. However, it’s not the easiest thing to pull off. Some tests are preceded by a pat-down and others are literally observed (read: someone watches you pee) by the test administrator. Many samples are immediately checked for temperature. There are products available to deceive monitors in the case of an observed test (read: a fake penis that dispenses a clean urine sample) and they’re available online.

Drug Testing In The NFL

Last May, Onterrio Smith of the NFL’s Minnesota Vikings was briefly detained by airport security when one such device known as “The Original Whizzinator” was found in a bag he was carrying. If you’re not confident of your friend’s ability to give you a clean urine sample, Dobie says that’s not a problem, either. You can just make your own synthetic urine. He suggests that if you knew the proper amounts, maybe by consulting a chemist, you could combine water, yellow food dye and creatinine (a breakdown product found in all mammals’ urine) to make a passable urine sample.

We say Good luck finding creatinine. By doing so, you’d create a substance similar to Kroll’s double-blind samples, which are synthetically made in the lab to be used as a control in the testing process. So long as the sample contains the proper amount of creatinine, it won’t “blank out” during the test. “As long as you have creatinine and it’s yellow, you’re — excuse the pun — golden,” Dobie says.

In the end, if we had to take a drug test (which we don’t) and were habitual drug abusers (which we swear we’re not), we’d stop using for the time being and try our best to flush our systems. It’s a fairly reliable way to pass a test. Even better, it’s not cheating. You’re not physically altering your urine with an additive, and you’re not passing in a sample you made with a chemistry set or that you got from a drug-free friend. You’re just speeding up a natural process.

Our Drug Testing Friend

For a time, Dobie was a negative certifying scientist. He’d confirm that someone passed the test by looking over the data of a given sample and confirming that it tested below minimum values for whichever drugs were being tested for. Later, he began work as a positive certifying scientist.

He would look at samples that initially showed evidence of drug use, add the pertinent chemicals and run it through a GCMS, or Gas Chromatography-Mass Spectrometer. By doing so, he could confirm what a preliminary test had already shown—that a given urine sample had tested positive for a specific type of drug. “It was my job to make sure that these people were confirmed positive.

At that point, I’m basically saying this person is losing their job, or not getting hired, or just failed their parole, and so on and so forth,” Dobie says. Dobie left Kroll to pursue a dental career. He’s currently enrolled as a graduate student at Tulane University.

Is There a Drug Test In Your Future?

Got an addiction? Need to know how long to endure drug withdrawal to ensure a passing urine drug test? There are plenty of charts available on the Internet that tell how long a certain drug can be detected in your system, but they’re all slightly different. We’ve stolen a little bit from each of them here, but be warned: the time will be much longer for a hair test.

Marijuana: 2 days to 11 weeks

THC can stay in your body for up to 11 weeks depending on your level of intake, your body weight, and other factors. 

Cocaine: 1 to 4 days

Heroin: 2 to 4 days

Alcohol: 6 to 24 hours (so just don’t be hammered while taking the test)

PCP: 3 days to 2 weeks

Some Options for Cleansing Toxins Like THC Out of Your System:

Same Day
Use a fast-acting body cleanser that can help flush unwanted toxins from your system the same day.

3 – 5 days
Use a permanent body cleanser that can help cleanse your body of unwanted toxins from your system until (or unless) they are re-introduced to your body. These cleansers come with two home test kits so you can verify that you are cleansed.

30 – 45 Days
Cleanse your body naturally over time through a lot of liquids, exercise and healthy eating in roughly 30 – 45 days. Pick up a home test kit from your local drug store to verify you are cleansed. 

Any casual drug user should be in the clear after 11 weeks.

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    1. yo passing a drug test is EASY! just follow the steps below.. I’ve done this multiple times and havent tested positive yet…
      First, eat a ketogenic diet; it forces the body to metabolize fat which is where toxins are stored (ketosis state). This is in contrast to a glycosis state, where blood glucose (sugar) provides most of the energy.

      Second, drink at the very least eight 8-ounce glasses of water a day; this will help flush your system as well as assist you in maintaining a healthy metabolism.

      Third, drink green tea; like water, this will lower levels through its diuretic properties and make an individual urinate a lot which technically washes out the kidneys. Green tea can purify your blood and get everything moving on. Incorporate in your diet throughout the day for at least a week leading up to your drug screen. We highly recommend the use of green tea as it’s one of the most well documented and natural ways to prepare for a drug test.

      Fourth, exercise and hit the sauna, steam-room and or Jacuzzi; all of these will speed up your metabolic rate and remove toxins from your system quicker.

      Lastly, get a detox kit from a reputable company thats been in business for awhile like ; they really help with getting the smallest amount out of your system before you screen.

      Remember, time is your friend. You got this.

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  5. If you are morbidly obese as I am, detoxing from weed took 15 weeks. The best method is the substitution method. Buy dried urine on the web. Get you a 60 ml Nalgene bottle. Pee on your hands a few times to get a sense of what temp it should be. Heat the bottle in hot water on the way to the test. Wear two panties stick it between your legs. Voila. Does not work for parole pee test, they do watch you.

  6. Three hours before test-3 tablespoons Baking soda in 32 ounce cup of water.Drink up(yes it doesn’t taste good..)be prepared to spend the next hour on the toilet “peeing” out your will have now “flushed”your system.2 hours before test drink LOTS of water(at least 2 liters)peeing once BEFORE test.So..flush,drink water,pee once,more water,you can now pee clean for about 3 to 4 hours.I was on parole for 5 years and did 3 one year violations for dirty tests.I did this every week for a year and was able to finaly get off parole..

    1. Does this truly work man plz I’m on paper for 15 yrs. I snorted opana and roxy today about 6 and have test at 8:30 in morning

  7. For all of my paranoid friend out there, I’ve been smoking pot every day of my life for the last 30 years, usually 3-4 hits off of a one hitter. Just passed a 20ng piss test by simply abstaining for two weeks, drinking lots of water and consuming Sure-Gel for the last 48 hrs. I think the detox companies out there want us to think that it takes 45 days without their products, not true! Just don’t be stupid, no pot for 2 weeks and you will be fine.

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  10. For those poor souls among you that are in the unenviable position of random drug tests, here’s what I did. First, there are products that will flush it from your system and your hair. However, let’s say you are caught unaware, and you know you used marijuana the night before. Tell the nurse/overseer/officer you can’t go, and drink a lot of water. Go to the restroom and use the sink. Go back and say “Not yet”, and drink as much as you can possibly drink. The idea is to dilute your urine. When it’s coming out clear, fill the container and give it to them. Wish those dinosaurs a good day.

  11. PASSING A DRUG TEST IS EASY if you follow the directions below a few days before your drug test:

    1. Don’t use cannabis!

    2. Go keto (low carb) and start burring fat!

    3. Drink a bunch of water and things like tea to flush your system and ramp up your metabolism.

    4. Exercise some, either by walking jogging or hitting the sauna!

    5. Lastly get a detox kit from someone reputable like ; I’ve use it a couple times and it hasnt failed me yet.

    Don’t try to cheat your drug screen and use synthetic urine; the labs are too sophisticated and you’ll definitely get caught. Be smart guys and give up the habit for a few days. It wont be as bad as you think!

  12. PASSING A DRUG TEST IS EASY if you follow the directions below a few days before your drug test:

    1. Don’t use cannabis!

    2. Go keto (low carb) and start burring fat!

    3. Drink a bunch of water and things like tea to flush your system and ramp up your metabolism.

    4. Exercise some, either by walking jogging or hitting the sauna!

    5. Lastly get a detox kit from someone reputable like ; I’ve use it a couple times and it hasnt failed me yet.

    Don’t try to cheat your drug screen and use synthetic urine; the labs are too sophisticated and you’ll definitely get caught. Be smart guys and give up the habit for a few days. It wont be as bad as you think!

  13. Place your career and family 1st over substance usage. We get it, we all have our vices, however the risk if not obtaining or losing employment, or worse can be more devastating. Certified facilities are on their game and are there not to catch you, rather protect companies from liabilities and employees from harming themselves or others. Adult up. If you mess around own it, and deal with the consequences that surround d it. Keep in mind there is additional mental health support available to assist you. We will all do what we do,but things will catch up,do not all9w it to be this!!!!!

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    Generally, 70 percent of your total calories will come from fat. Protein makes up about 20 percent, while 10 percent comes from carbs. Overwhelming great amounts of fat while limiting protein and carbs is thought-provoking, and other people frequently are not truthfully in ketosis.

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