Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat. Call your doctor at once if you have any of these serious side effects:
- unusual risk-taking behavior, decreased inhibitions, no fear of danger;
- depressed mood, thoughts of suicide or hurting yourself;
- hyperactivity, agitation, hostility, hallucinations;
- feeling light-headed, fainting;
- seizure (convulsions);
- urinating less than usual or not at all;
- muscle twitching, tremor; or
- jaundice (yellowing of the skin or eyes).
Less serious Xanax side effects may include:
- drowsiness, dizziness, feeling irritable;
- amnesia or forgetfulness, trouble concentrating;
- sleep problems (insomnia);
- muscle weakness, lack of balance or coordination, slurred speech;
- blurred vision;
- nausea, vomiting, constipation, appetite or weight changes;
- dry or watery mouth, increased sweating; or
- loss of interest in sex.
Side effects other than those listed here may also occur. Talk to your doctor about any side effect that seems unusual or that is especially bothersome. You may report side effects to FDA at 1-800-FDA-1088.
