Long half-life: The elimination half-life of xanax (alprazolam) is about 11.2-26.9 hours. It takes almost 6 elimination half-life's for a drug to be cleared from the human body. Well... It could take a maximum of 161.4 hours or 6.7 days (6 x 26.9 hours) for xanax (alprazolam) to be completely eliminated. Rec. See your prescribing physician to express your concerns.
Answered 4/23/2014
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