Specializes in Psychiatry
Months: It can take months for a heavy user.
Answered 4/19/2016
5.1k views
Specializes in Psychiatry
90 days at least: Hair follicles will remain positive for at least 90 days after heavy use.
Answered 5/3/2016
5.1k views
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A doctor has provided 1 answer
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A doctor has provided 1 answer
A doctor has provided 1 answer
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