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Icosapent Side Effects

For the Consumer

Applies to icosapent: oral capsule liquid filled

Along with its needed effects, icosapent may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Some side effects of icosapent may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

Less Common

  • Difficulty with moving
  • muscle pain or stiffness
  • pain in the joints

Incidence Not Known

  • Pain in the mouth or throat

For Healthcare Professionals

Applies to icosapent: oral capsule


Gastrointestinal side effects have included oropharyngeal pain.[Ref]


Hematologic side effects have included prolonged bleeding time.[Ref]


Musculoskeletal side effects have included arthralgia (2.3%).[Ref]


1. "Product Information. Vascepa (icosapent)." Amarin Pharmaceuticals Inc, Warren, NJ.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Some side effects may not be reported. You may report them to the FDA.