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Commonly Reported Alprazolam Side Effects

Alprazolam has been studied thoroughly in clinical trials. In these studies, the side effects that occur in a group of people taking the drug are documented and are then compared to side effects that occur in another group of people not taking the medicine. This way, it is possible to see what side effects occur, how often they appear, and how they compare to the group not taking the medicine.
In these studies, some of the most common side effects of alprazolam included:
  • Drowsiness -- in up to 76.8 percent of people
  • Fatigue and tiredness -- up to 48.6 percent
  • Coordination problems -- up to 40.1 percent
  • Irritability -- up to 33.1 percent
  • Memory problems -- up to 33.1 percent
  • Increased appetite -- up to 32.7 percent.
Some other common side effects, occurring in 1 to 30 percent of people, included:
  • Speech problems
  • Changes in sex drive or other sexual problems (see Xanax Sexual Side Effects)
  • Confusion
  • Talkativeness
  • Unusual dreams
  • Feeling warm
  • Constipation
  • Increased salivation
  • Nasal congestion
  • Decreased appetite
  • Weight loss or weight gain (see Xanax and Weight Gain)
  • Difficulty urinating
  • Menstrual problems
  • Dry mouth.

Final Thoughts

You may experience some or none of the alprazolam side effects listed in this article. Unfortunately, there is no way for your healthcare provider to know beforehand if you will have side effects from a medicine that you have never tried. Therefore, make sure to let your healthcare provider know if you develop any side effects while taking alprazolam or if something "just does not seem right." While it may not be a side effect, your healthcare provider will be able to diagnose and treat the problem.
Written by/reviewed by:
Last reviewed by: Kristi Monson, PharmD;
Last updated/reviewed:
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