Xanax is a benzodiazepine (ben-zoe-dye-AZE-eh-peen). It is thought that alprazolam works by enhancing the activity of certain neurotransmitters in the brain.

Xanax is used to treat anxiety disorders and anxiety caused by depression.

Xanax is also used to treat panic disorders with or without a fear of places and situations that might cause panic, helplessness, or embarrassment (agoraphobia).

It is dangerous to purchase Xanax on the Internet or outside the United States. The sale and distribution of medicines outside the U.S. does not comply with safe-use regulations of the Food and Drug Administration (FDA). These medications may contain dangerous ingredients, or may not be distributed by a licensed pharmacy.

Xanax can slow or stop your breathing, especially if you have recently used an opioid medication or alcohol.

MISUSE OF XANAX CAN CAUSE ADDICTION, OVERDOSE, OR DEATH. Keep the medication in a place where others cannot get to it.

Do not stop using Xanax without asking your doctor. You may have life-threatening withdrawal symptoms if you stop using the medicine suddenly after long-term use. Some withdrawal symptoms may last up to 12 months or longer.

Get medical help right away if you stop using Xanax and have symptoms such as: unusual muscle movements, being more active or talkative, sudden and severe changes in mood or behavior, confusion, hallucinations, seizures, or thoughts about suicide.

Xanax is a federal controlled substance (C-IV) because it can be abused or lead to dependence. Keep this medicine in a safe place to prevent misuse and abuse. Selling or giving away this Xanax may harm others, and is against the law. Tell your healthcare provider if you have abused or been dependent on alcohol, prescription medicines or street drugs.

Take Xanax exactly as prescribed by your doctor. Follow the directions on your prescription label and read all medication guides or instruction sheets. Never use Xanax in larger amounts, or for longer than prescribed. Tell your doctor if you feel an increased urge to use more of this medicine.

Never share this medicine with another person, especially someone with a history of drug abuse or addiction. MISUSE CAN CAUSE ADDICTION, OVERDOSE, OR DEATH. Keep the medication in a place where others cannot get to it. Selling or giving away this medicine is against the law.

Swallow the Xanax XR extended-release tablet whole. Do not crush, chew, or break the tablet.

Call your doctor if your symptoms do not improve, or if they get worse.

If you use this medicine long-term, you may need frequent medical tests.

Do not stop using Xanax without asking your doctor. You may have life-threatening withdrawal symptoms if you stop using the medicine suddenly after long-term use.

Store Xanax at room temperature away from moisture, heat, and light. Keep your medicine in a place where no one can use it improperly.