Before using Xanax, tell your doctor if you regularly use other medicines that make you sleepy (such as cold or allergy medicine, narcotic pain medicine, sleeping pills, muscle relaxers, and medicine for seizures, depression, or anxiety). They can add to sleepiness caused by Xanax. Before taking Xanax, tell your doctor if you are using any [...]

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 [...]