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A 35-year-old member asked:

How long before thc leaves the system?

2 doctor answers5 doctors weighed in
Dr. Heidi Fowler
Psychiatry 25 years experience
That depends....: Single use marijuana might be detected in urine for 1 to 7 days (or more) and regular marijuana can be detected in urine for 7 to 100 days (longer periods have been reported though).
Dr. Steven Reidbord
Psychiatry 36 years experience
Weeks: Thc, the active drug in marijuana, is fat-soluble, which means it lingers in the body a long time — especially in trace amounts that can be detected on drug-testing. Depending on the type of drug test, it can be detected for many weeks. There's also no "antidote" to sober up from thc fast, if that's what you're asking. Best not to put it in your system to start with, if you need it to be out.

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Last updated Dec 1, 2019
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