A member asked:

How far back does an oral drug test detect cannabis?

A doctor has provided 1 answer
Dr. Horacio Capote answered

Specializes in Psychiatry

Since thc (the active ingredient in marijuana) binds to fat, it depends on you much fat you have, how much you use, & how physically active you are. It would not be unusual to test positive for a month.

Answered Aug 13, 2016

6k views

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