A member asked:

Does promazine hcl stay in blood/pee for a long time getting tested?

A doctor has provided 1 answer
Dr. Alan Ali answered

Specializes in Psychiatry

Promazine: Half-life is 16-30 hours, so it takes 80-150 hours to clear out of your system, which is roughly 4-6 days.

Answered 3/17/2013

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