Hair Testing Drugs: Forever. The hair will forever be able to detect the drugs or alcohol one uses. Thus you have to cut your hair on a regular basis, especially before a drug test.
Answered 4/14/2013
5.2k views
A while: If you have been taking them regularly, they will show up as opiates in your hair. It can be present for several months.
Answered 11/28/2017
4.5k views
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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