Alpelisib and Dexamethasone interaction
Alpelisib and Dexamethasone: 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.
If a SCAR is not confirmed, VIJOICE may require dose modifications, topical or systemic corticosteroids, or oral antihistamine treatment as described in Table 4 [see Dosage and Administration (2.5)] .
Monitor fasting glucose more frequently for the first few weeks during treatment with VIJOICE in patients with risk factors for hyperglycemia, such as obesity (BMI ≥ 30), elevated FPG, HbA1c at the upper limit of normal or above, use of concomitant systemic corticosteroids, or age ≥ 75 [see Use in Specific Populations (8.5)] .
Patients with colitis may require additional treatment, such as enteric-acting and/or systemic steroids [see Dosage and Administration (2.5)] .
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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.