Alpelisib and Primidone interaction
Alpelisib and Primidone: the Alpelisib prescribing label flags 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 Alpelisib (VIJOICE) label · effective 2025-11-04
CYP3A4 Inducers : Avoid coadministration of VIJOICE with a strong CYP3A4 inducer.
Effect of Other Drugs on VIJOICE CYP3A4 Inducers Avoid coadministration of VIJOICE with strong CYP3A4 inducers and consider an alternative concomitant drug with no or minimal potential to induce CYP3A4.
Consider an alternative concomitant drug with no or minimal potential to induce CYP3A4.
Concomitant use of VIJOICE with a strong CYP3A4 inducer may decrease alpelisib concentration [see Clinical Pharmacology (12.3)] , which may decrease alpelisib activity.
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Open in the checkerNot medical advice. Interaction Checker quotes FDA label text and NIH fact sheets. Whether an interaction matters for you depends on doses, timing, kidney and liver function, and other conditions. Confirm with a pharmacist or prescriber.