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Ivacaftor Disease Interactions

There are 3 disease interactions with ivacaftor:


Ivacaftor (Includes ivacaftor) ↔ cataracts

Moderate Potential Hazard, Moderate plausibility. Applies to: Cataracts

Cases of non- congenital lens opacities or cataracts have been reported in pediatric patients treated with ivacaftor, and although other risk factors could be present in some cases, a possible risk attributable to this medication cannot be excluded. Baseline and ophthalmological examinations are recommended in pediatric patients initiating treatment. Caution is advised in patients with ophthalmologic conditions.


Ivacaftor (Includes ivacaftor) ↔ hepatic impairment

Moderate Potential Hazard, Moderate plausibility. Applies to: Liver Disease

Elevated transaminases have been reported in patients with cystic fibrosis receiving ivacaftor. It is recommended that liver function tests are assessed prior to treatment, every 3 months during the first year, and annually thereafter. Patients with increased levels should be closely monitored until the abnormalities resolve, and dosing should be interrupted in patients with ALT or AST of greater than 5 times the upper limit of normal (ULN). In patients with hepatic impairment, no dose adjustment is necessary in patients with mild impairment, but a reduced dose of ivacaftor is recommended in patients with moderate impairment (see prescribing information for dosing recommendations). Studies have not been conducted in patients with severe hepatic impairment, but exposure is expected to be higher than in patients with moderate impairment. Therefore, caution should be used on these patients, and a reduced dose is recommended after weighing the risks and benefits of treatment.


Ivacaftor (Includes ivacaftor) ↔ renal impairment

Moderate Potential Hazard, Moderate plausibility. Applies to: Renal Dysfunction

Ivacaftor has not been studied in patients with renal impairment. No dose adjustment is necessary for patients with mild or moderate renal impairment, however, caution is recommended in patients with severe renal impairment or end-stage renal disease.

Ivacaftor drug interactions

There are 426 drug interactions with ivacaftor

Ivacaftor alcohol/food interactions

There is 1 alcohol/food interaction with ivacaftor

Drug Interaction Classification

The classifications below are a general guideline only. It is difficult to determine the relevance of a particular drug interaction to any individual given the large number of variables.
Major Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit.
Moderate Moderately clinically significant. Usually avoid combinations; use it only under special circumstances.
Minor Minimally clinically significant. Minimize risk; assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan.
Unknown No information available.

Do not stop taking any medications without consulting your healthcare provider.

Further information

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