Elexacaftor, tezacaftor, and ivacaftor and Grapefruit interaction
Elexacaftor, tezacaftor, and ivacaftor and Grapefruit: the Elexacaftor, tezacaftor, and ivacaftor prescribing label flag this combination with the strongest language, such as a contraindication, a boxed warning, or an instruction to avoid it.
Do not combine without a prescriber's guidance. The label language below is the strongest FDA uses.
What the FDA labels say
From the Elexacaftor, tezacaftor, and ivacaftor (Trikafta) label · effective 2026-06-22
Avoid food or drink containing grapefruit.
( 2.4 , 5.6 , 7.1 , 12.3 ) 7.1 Effect of Other Drugs and Grapefruit on TRIKAFTA Strong CYP3A Inducers Concomitant use of TRIKAFTA with strong CYP3A inducers is not recommended.
Examples of moderate CYP3A inhibitors include: fluconazole erythromycin Grapefruit Concomitant use of TRIKAFTA with grapefruit juice, which contains one or more components that moderately inhibit CYP3A, may increase exposure of elexacaftor, tezacaftor and ivacaftor; therefore, food or drink containing grapefruit should be avoided during treatment with TRIKAFTA…
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