1 Sep 2011
Xanax has a half-life of approximately 8 hours. Any drug's half live x 5 will be the approximate amount of time it remains in your system. So, for Xanax, it would be 8x5=40 hours. This will differ based on body weight and metabolism, however. But that is the best answer I can give not knowing your metabolic rate or your body weight.
- Xanax Information for Consumers
- Xanax Information for Healthcare Professionals (includes dosage details)
- Side Effects of Xanax (detailed)
Search for questions
Still looking for answers? Try searching for what you seek or ask your own question.
how long after I take zanax can i pass a drug test?
3 answers • 17 Jun 2009
2 answers • 29 Apr 2010
If I took 3 zanax and haven't used them in 10 years but I weigh 260 lbs how long will it take to get out of my system for a urine test.
1 answer • 13 Jan 2012
My buddy took his first xanax 2 nights ago. They are 2 mg and he wants to take another one tonight but has a drug test on march 8. I told him he ...
1 answer • 2 Mar 2012