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Kalydeco Side Effects Center
Medically reviewed by Min Clinic Staff | Updated: January 2026
- Generic Name: ivacaftor
- Brand Name: Kalydeco
Kalydeco (Ivacaftor) side effects drug center
Kalydeco Side Effects Center
What Is Kalydeco?
Kalydeco (ivacaftor) film-coated tablets are a CFTR potentiator indicated for the treatment of a rare form of cystic fibrosis (CF) in patients ages 6 years and older who have the specific G551D mutation in the Cystic Fibrosis Transmembrane Regulator (CFTR) gene.
What Are Side Effects of Kalydeco?
Common side effects of Kalydeco include:
- upper respiratory tract infection,
- headache,
- stomach pain,
- nausea,
- rash,
- acne,
- diarrhea,
- dizziness,
- joint or muscle pain, or
- cold symptoms (stuffy nose, sneezing, sore throat).
Serious side effects of Kalydeco include:
- liver problems,
- severe stomach pain,
- chest pain,
- wheezing,
- shortness of breath,
- itching,