How Long Does THC Stay in Your System? - Medical Marijuana, Inc.
Friday, Aug 9, 2019

THC is detectable for only a relatively short period, but how long does marijuana stay in your system? THC’s metabolites can stay around in the body for much longer than the duration of effects. In some cases, evidence of marijuana use can be detected for weeks, months, and even years, depending on the tests being used. In this article, we’ll explore exactly how long marijuana or “weed” can stay in your system and how long THC can be detected by drug tests.

While the euphoric effects of THC can fade rather quickly, lasting just a few hours when inhaled, the compound and its metabolites can stay in your system for weeks after consumption, in some cases even longer, putting you at risk to fail a drug test.

THC, or tetrahydrocannabinol, is the active compound found in marijuana – both medical and recreational – that causes short-term euphoric effects. Although these effects of THC last just a few hours, THC can stay in your system for much longer.

How long does marijuana stay in blood? THC is rapidly metabolized by your body and only remains detectable in your blood for a few hours to 1-2 days after a single use. In heavy users (multiple times a day), THC may stay in the bloodstream for up to a week. How long does marijuana stay in saliva? THC appears in saliva an hour after use and remains detectable for up to one to two days. How long does marijuana stay in urine? THC byproducts remain for about 5-8 days after one time use, 11-18 days when cannabis is consumed 2-4 days per week, 33-48 days when consumed 5-6 days per week, and around 50-65 days if cannabis is consumed daily. Many individual factors can affect these ranges. How long does marijuana stay in hair? THC metabolites stay in your hair for longer than any other system in the body. Most hair tests look for evidence of cannabis use over the last 90 days, but some hair follicle tests reveal marijuana use going back years.

Why is THC detected in the body so long after use? It has much to do with the way the body absorbs and processes cannabinoids like THC. When you consume marijuana, the active compounds in marijuana are absorbed into the bloodstream, causing THC levels in the bloodstream to temporarily rise. Your blood carries THC to the brain and other organs throughout the body, where THC interacts with cannabinoid receptors to generate its effects on the body, including short-term euphoria.

Eating habits THC potency of cannabis Frequency of cannabis consumption The majority of marijuana users, however, are able pass a urine test within two weeks of use.