Alprazolam may slow or stop your breathing, especially if you have recently taken an opioid medication, drank alcohol, or taken other drugs that slow your breathing. If you have weak breathing or are difficult to wake up, someone caring for you should seek emergency medical attention.


Common side effects of Xanax include:


    • lightheadedness
    • drowsiness
    • irritability
    • tiredness
    • dizziness
    • dry mouth
    • difficulty concentrating
    • constipation
    • increased salivation
    • changes in sex drive or ability
    • difficulty urinating
    • changes in appetite
    • weight changes


The sedative effects of Xanax may last longer in older adults. Elderly patients taking benzodiazepines are at a higher risk of falling. To avoid losing or sustaining an injury, exercise caution.


Serious side effects of Xanax may include:


  • depressed mood, unusual risk-taking behaviors, decreased inhibitions, no fear of danger, thoughts of suicide, or hurting oneself 
  • feeling very faint
  • jaundice
  • a pounding heartbeat, chest pain, or a fluttering feeling in the chest
  • urinating less than usual 
  • uncontrolled muscle movements, tremors, or seizures
  • confusion, hyperactivity, agitation, hostility, or hallucinations