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Side Effects of Chloroquine

Common Side Effects

For many medications, the prescribing information carefully explains the exact percentage of side effects that were seen in clinical trials. However, the prescribing information for almost all older medications, including chloroquine, includes only vague side effect information, with no percentages. Therefore, it can be difficult to know exactly how common the side effects of such medications may be.
 
Possible side effects of chloroquine include but are not limited to:
 
  • Nausea and vomiting
  • Diarrhea
  • Stomach cramps
  • Headache
  • Loss of appetite
  • Blurred vision
  • Ringing in the ears (tinnitus)
  • Skin rash
  • Hair loss or changes in hair color
  • Changes in skin pigment
  • Itching
  • Confusion
  • Trouble sleeping
  • Sensitivity to the sun.
     

Final Thoughts

You may experience some or none of the chloroquine side effects listed in this article. Unfortunately, there is no way for your healthcare provider to know beforehand if you will have problems with a medicine that you have never tried.
 
Therefore, make sure to let your healthcare provider know if you develop any side effects while taking this drug, or if you develop something that "just does not seem right." While it may not be related to chloroquine, your healthcare provider will be able to diagnose and treat the problem.
 

Chloroquine Drug Information

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