You are here:

Pharmacology/Xanax Drug testing

Advertisement

Expert: Joe Haynes, R.Ph., MBA - 3/25/2008


Question
How long does xanax stay in your system for urine testing, I weigh 140 lbs. I am 42 years old, and have been taking 2mg a day for approx. 1 month

Answer
Larry-
Xanax has a half-life of 6.3-27 hours which means it can take that amount of time for one half of the drug in your blood to clear. It takes 5 half-lives for a drug to become undetectable so you are looking at as early as 30 hours and as late as 135 hours.
Depending on what your situation is, I would hedge on the side of the 135 hours to ensure undetectability.

Pharmacology

All Answers

Answers by Expert:

Ask Experts

Volunteer

Joe Haynes, R.Ph., MBA

Expertise

I can answer pharmacy/pharmacology questions as they relate to both pediatric and adult therapies. Please note that since I practice in Florida that I may not be able to answer specific questions regarding pharmacy practice in your state. As a disclaimer, I have no financial interest in recommending or failing to recommend any drug product. My goal is to give you the best answer to your questions regardless of product.

Experience

I have 24 years experience in pharmacy practice including pediatric and adult hospital, home-infusion, and long-term care (nursing home/ALF). I enjoy assisting with pediatric dosing and medication questions since children respond differently and are dosed differently than adults. I can help you determine if the dose you want to administer to your child is appropriate. I am currently director of pharmacy for a small community hospital in St. Petersburg, FL.

Organizations
Florida Society of Health-Systems Pharmacists American Society of Health-Systems Pharmacists Florida Pharmacy Association

Education/Credentials
BS in Microbiology from Auburn University (1989) BS in Pharmacy from Northeastern University (1994) MBA (generalist) from St. Leo University (2005)

©2012 About.com, a part of The New York Times Company. All rights reserved.