A member asked:

5mg of xanax (alprazolam) who long for effects?

A doctor has provided 1 answer
Dr. Patrick Tapia answered

Specializes in Psychiatry

Quick onset and end: A 0.5 mg dose of Alprazolam would typically start working within an hour and would probably not be noticeable much beyond about four to eight hours. I would talk to your prescribing physician for more information!

Answered 6/24/2014

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