Ivacaftor may cause side effects. Tell your doctor if any of these symptoms are severe or do not go away:
- joint pain
- mouth and throat pain
- fever, sore throat, runny nose, or other signs of infection
Some side effects can be serious. If you experience any of these symptoms, call your doctor immediately:
- loss of appetite
- pain in the upper right part of the stomach
- dark urine
- extreme tiredness
- unusual bleeding or bruising
- yellowing of the skin or eyes
- vision changes
Ivacaftor may increase the risk that you or your child may develop cataracts. Talk to your doctor or your child's doctor about the risks of taking this medication.
Ivacaftor may cause other side effects. Call your doctor if you have any unusual problems while taking this medication.