Xanax (alprazolam) belongs to a group of drugs called benzodiazepines. It works by slowing down the movement of chemicals in the brain that may become unbalanced. This results in a reduction in nervous tension (anxiety).
Xanax is used to treat anxiety disorders, panic disorders, and anxiety caused by depression.
Xanax may also be used for purposes not listed in this medication guide.
Get emergency medical help if you have any of these signs of an allergic reaction to Xanax: hives; difficult breathing; swelling of your face, lips, tongue, or throat.
Stop using Xanax and call your doctor at once if you have a serious side effect such as:
- depressed mood, thoughts of suicide or hurting yourself, unusual risk-taking behavior, decreased inhibitions, no fear of danger;
- confusion, hyperactivity, agitation, hostility, hallucinations;
- feeling like you might pass out;
- urinating less than usual or not at all;
- chest pain, pounding heartbeats or fluttering in your chest;
- uncontrolled muscle movements, tremor, seizure (convulsions); or
- jaundice (yellowing of the skin or eyes).
Less serious Xanax side effects may include:
- drowsiness, dizziness, feeling tired or irritable;
- blurred vision, headache, memory problems, trouble concentrating;
- sleep problems (insomnia);
- swelling in your hands or feet;
- muscle weakness, lack of balance or coordination, slurred speech;
- upset stomach, nausea, vomiting, constipation, diarrhea;
- increased sweating, dry mouth, stuffy nose; or
- appetite or weight changes, loss of interest in sex.
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects.