A member asked:

If you are useing nizoral (ketoconazole) shampoo will it effect a drug hair follicle test?

A doctor has provided 1 answer
Dr. Michael Fisher answered

Specializes in Dermatology

Nizoral (ketoconazole) shampoo is used to treat seborrheic dermatitis. This drug does not effect the hair follicle.

Answered Jan 14, 2016

5.4k views

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