A member asked:

If i smoked weed three times in four weeks, then stopped, how long would it take for the thc metabolites to be completely gone from my urine?

A doctor has provided 1 answer

Long time: Some marihuana substances have an elimination half-life of 20 hours. However, some are stored in body fat and have a elimination half-life of 10 to 13 days. Most researchers agree that urine tests for marijuana can detect the presence of the drug in the body for up to 13 days.

Answered 3/7/2016

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