A member asked:

If you don't smoke marijana on a regular is it still in your system?

A doctor has provided 1 answer
Dr. Paul Grin answered

Specializes in Pain Management

5 days: The half life of marijuana is is variable with a mean value of between 13-20 hours. It takes approximately 6 half lives for a drug to be eliminated from your system. 20*6/24=5 days. The marijuana will stay in your system for about 5 days. Marijuana can also stay in your hair for up to 30 days.

Answered 9/29/2016

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