Depends: On what you are taking the xanax (alprazolam) for. If it is for generalized anxiety disorder, unless you are on a time-release preparation, Alprazolam is a short-acting drug and will not be working for you if you take it at night. If it is for insomnia, it is not the best medication for sleep. If it is to combat the effects of the Phentermine making you anxious, again i would consider a longer acting drug.
Answered 3/1/2015
4.5k views
A doctor has provided 1 answer
A doctor has provided 1 answer
10 doctors weighed in across 4 answers
A doctor has provided 1 answer
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question