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How Long Does Marjuana Stay In The System
Thc in bloodstream: Hunault et al 2000 calculated that high dose (23 %) marihuana can stay in your blood stream up to 8 hours. However cannabis users can have products of metabolism circulating and excreted for prolonged periods of time. Cannabis users are usually identified through detection of 11-nor-9-corboxy-delta9-tetrahydrocannabinol (thccooh) in urine. Thccooh may be detectable up to 3 months. ...Read more
Which "meth???": Methamphetamine is a short-acting drug, but it has longer acting metabolites which are what are measured in urine. After a single dose, it's half-life is about 4 hours, but metabolites can be found for 2-3 days. After regular heavy use, it can be detected for 5-7 days. Methadone (also called meth) lasts for 3-5 days, and in long-term use metabolites can be detected for weeks. ...Read more
Marijuana in Body: The active ingredient in marijuana is THC. The half-life (meaning how long it takes for 1/2 of it to "disappear") is about 20 hours. It can settle in fat cells and take time to get out of the body. Generally after 2-weeks it is all gone, although there have been reports of up to 30-days. ...Read more
It varies: Normally accepted half life is 4-16 hours but one recent study reported 40 hour. This means 1/2 of the total in your system should be gone in up to 40 hours.. Another 1/2 of whatever is left will take another 40 hours and so on. So there is no one clear simple answer. Best guess is that it will probably be gone by 10 days but could be sooner. ...Read more
Half life and more: That depends on that you mean by "your system." the "half life" of morphine (the time it takes once it peaks in the body for half of it to have been metabolized) is about 2 hours. But it takes about 3 days to eliminate 85% totally from the body for an average person's liver. That said, its metabolites are detectable in a urine test oftentimes for a week, and in a hair test almost permanently. ...Read more
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