A member asked:

My gf takes vicodin 3x a day they refill every 30 days she has severe pain, they drug tested her it came neg they said leave cuz she is prob sells it?

A doctor has provided 1 answer
Dr. Alan Ali answered

Specializes in Psychiatry

False neg.?: Very strange circumstance. Urine drug screen can give false results if some other medications are taken same time, and can be invalidated if agents like detergents or antifungal agents are used . I recommend repeating the test or doing blood test.

Answered 9/14/2019

5.6k views

Thank

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