how long does it take xanax to leave your system?

24 hours - you won't feel the effects after 6-10, but it will still be in your system for atleast 24.

If you are taking xanax on a regular basis prescribed by a doctor, contact him. It is better to lower your dosage steadily and takes about 72 hours to leave your system.

If you took xanax on a one time basis, it should be out of your system in 24 hours.

Please DON'T take medication that is not prescribed to you. It could be very dangerous to you and even not the same medicine the person tells you it is! That could be FATAL.

4 hrs. for effects to taper and leave your system but it'll still show up in a UA and hair samples.

first if it was not from your dr. u should not have took it. you can have a lot of things go wrong with u .when u do other people meds.i took something that was not mine and like to have left this world.so please take only your meds.