how long does cannabis stay in the system?
968764
Seven to thirty days.\n\nTesting for weed\nhttp://www.marijuana.org/BeatDrugTesting.htm
1016737
Cannabinoids (THC) - 2 Hours  Infrequent user: up to 10 days\nChronic user: 6 weeks\n\nCocaine Metabolite - 1.25 - 4 hours / 2-3 days  \n\nMethylenedioxymethamphetamine (MDMA/ecstasy) 2-4 hours  1-3 days
536412
Absolutely nothing, that actually "works". Lots of people say "if I wanted to I could pass a drug test", I've heard it dozens of times, and watched those same people lose their jobs or go to jail for not passing their U.A.'s. The only way to be certain you'll pass is to stay clean. It takes 7 days to 2 weeks for your system to clear itself of meth, and 7-30 days to clear it of marijuana. Time and abstaining are the only methods that work. Forget the special drinks and home remedies. I've seen them all, and they don't work. Besides, drug testers often look for over-dilution of water in the urine, a ph balance that's "off", and all the various chemical-components that those over-the-counter store bought and home-made "remedies" contain, and if these are found, they'll consider it a "dirty U.A.". How do I know all this? I've been there before myself, and so have many people that I know that are close to me.
411583
Depends on what type of drugs you have been taking and what type of test that they are doing;\n\nIf its something like pot, then first thing to remember is that it takes, naturally, 30-45 days to clear your system. \n\nThere are products on the market that you take a couple of hours prior to the test, these are basically a diuretic, they make you pee so much that when you finally take the test 2 hours later, there is not THC (the drug that they test for) in your system at that time.  This is only good for 1 test, as a few hours later the THC count will be up again as it is flushed out of your blood and into your pee, so timing is everything.\n\nIf its a blood test or a chemical analysis of your hair, then you have a problem!   If the hair one you can always shave off all your hair just before the exam so they can not get at it!  But would not suggest draining your blood!
370968
Urine drug testing is the most commonly used and most inexpensive from of drug testing. While most drugs will be washed out of your system after a few days, marijuana will test positive for several weeks after the last use. This is because THC is not water-soluble and will actually "stick" to the fatty tissues in your body.
356532
it is a myth that marijuana lasts in your system (I've heard weeks, months, etc) That is medically impossible.  Marijuana leaves your urine in about 12-24 hours, depending on your metabolism.  You know how you smoke it and then get high, then once your high is gone you feel kind of depressed for a bit afterwards?  This is  you body cleansing itself of it's toxins.\nI got tested once only 2 days after smoking pot with a urine and a blood test-both came out clean.  No worries.
119629
This all depends.  How big are you, how much do you smoke?  THC is stored in your fat cells.  The bigger you are, the longer it sticks around. The more you smoke, the longer it sticks with you.  If you are trying to pass a drug test, best thing you can do is buy something to clean you out from your local head shop.  Otherwise, unless you smoke very little amounts & can wait about a month.  Then you could probably pass a urine/blood test.  It takes 6 months or more for it to be undetectable in your hair.
1180345
THC = synthetic THC (Marinol)    THC-delta 9 is the chemical found in marijuana that gets you "high."  THC-delta 9 can last in the body up to 6 months.  Usually you hear 1 month.  However, the marijuana grown nowadays is stronger, thereby THC-delta 9 can remain in the body longer.  It is not water-soluble (water will not make it pass through ones body quicker) It is lypaphillic, meaning fat-soluble and will attach itself to something like itself.  In our bodies, those areas with fat-soluble cells are brain, immune system and reproductive systems.  Latest research from John Hopkins University shows amounts of THC-delta stored in a body for up to 6 months.
608787
Ironically, the drug that stays in the system longest is the most innocuous, marijuana. Ice (methamphetamine), cocaine, heroin will only test positive for a couple days after the last time they were taken. Marijuana can last up to 6 weeks. These times vary somewhat based on dosage and frequency of use before the test and the metabolism and body chemistry of the test subject.\n\nPS: Ice is an incredibly addictive drug that can cause permanent changes in brain structure with very limited use. It is still rising in popularity and is already causing more problems than heroin and cocaine combined. Just stay away from it. And I say this as a person who is generally pro-legalization when it comes to drugs. Meth makes cocaine seem like icing sugar.
654686
For an urine or blood drug test, THC metabolites [the active ingredient in marijuana] show up for a period of 28 to 30 days after the last time you smoked. If a hair sampling drug test is done, it may take months or even years [if you're long-haired] for THC traces to disappear completely from your system. But, if you smoked for medical reasons [marijuana is a medically recognized treatment for nausea and vomiting in cancer patients undergoing chemotherapy; it even comes in pill form, under the brand name of MARINOL; get your oncologist to prescribe it for your use], then you can't be discriminated against or otherwise penalized if a positive result comes back. It's unconstitutional and illegal to do so, because it may constitute discrimination against your person in basis of a disabling condition. You may want to consult an attorney regarding this issue for further advise. Good luck, and hope that you get better real soon.
588702
Yes, it will stay in your system for at least a month.  It will also show in your hair follicles for months.  There is really nothing you can do about it unless you have one of the cheats available, like the bag with real pee.  Even if you didn't smoke it, if you are in a situation where pot is being smoked, you can inhale it and it will show up in a drug test...sorry dude.
477480
It depends on your bodies metabolism but the safe rule of thumb, and I don't care what anyone says, is at least 30 days, no matter what amount was smoked, no matter how much water you drink. Just because THC is not easily broken down and flushed out of our system by water. Now true some bodies may process it faster, and drinking an @$$load of water may or may not speed the process up, but why take that chance? Go at least 30 days.
788769
From what I have read it may take up to 90 days to not be detected in urine. But I would wait even longer - maybe 6 months based on your usage
347880
drugs in general will pass through your system within a few months and not show up in a urinalisis, but they can still be detected though blood and hair folicles.
720174
If by "in your system," you mean for how long will you test positive on a urine test, the usual answer is 3-4 days.  It might be a little longer  than that (maybe a week or more)for someone who smokes as much as you.  \n\nBut that's for a urine test, which is the usual test for employment purposes.  But cannibis can be detected for much long through a hair test:  30 days, 60 days, or really as long as you still have the hair that was growing at the time you were smoking.
15595
Marijuana stays in ones system for around 3 months, although it can be traced in the hair follicles for a lot longer.\nHowever, if it's found in your trace, you remember a party you were @ a month or so ago, where a group of strangers were smoking this strange smelling cigarette!\nIt can be traced, but if you directly ingested it, is always in question :o)
1176311
if you are a heavy nug smoker (at least every day ) it will take about 4 weeks to completely leave your system.  also, the more fat cells you have, the longer it takes.. if you smoke on occasion it will take about 2 weeks..  \nif you need to pass a piss test i suggest you go to a health store and ask for something that will  no doubt clean the toxins from your body (don't mention the fact that you need to pass a piss test, this will alarm the worker not to sell it to you or ask you to leave).. and drink lots and lots of water.. about a gallon a day