Atazanavir and Bromocriptine interaction
Atazanavir and Bromocriptine: both prescribing labels 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 Bromocriptine (CYCLOSET) label · effective 2026-01-12
Concomitant use of strong CYP3A4 inhibitors (e.g., azole antimycotics, HIV protease inhibitors) with CYCLOSET should be avoided.
Avoid concomitant use of CYCLOSET with strong CYP3A4 inhibitors.
CYCLOSET dose should not exceed 1.6 mg once daily during concomitant use of a moderate CYP3A4 inhibitor (e.g., erythromycin).
Limit CYCLOSET dose to 1.6 mg/day during concomitant use of moderate CYP3A4 inhibitors.
Ensure adequate washout of the strong CYP3A4 inhibitor drug before initiating CYCLOSET treatment [see Clinical Pharmacology (12.3) ] .
From the Atazanavir (REYATAZ) label · effective 2024-12-05
…Rifampin Antineoplastics Apalutamide, encorafenib, irinotecan, ivosidenib Antipsychotics Lurasidone (with ritonavir), pimozide Benzodiazepines Orally administered midazolam a , triazolam Ergot Derivatives Dihydroergotamine, ergonovine, ergotamine, methylergonovine GI Motility Agent Cisapride Hepatitis C Direct-Acting Antivirals Elbasvir/grazoprevir; glecaprevir/pibrentasvir…
This is due to the potential for serious and/or life-threatening events such as acute ergot toxicity characterized by peripheral vasospasm and ischemia of the extremities and other tissues [see Contraindications (4) ].
Ergot derivatives: dihydroergotamine, ergotamine, ergonovine, methylergonovine ↑ ergot derivatives Coadministration of REYATAZ with ergot derivatives is contraindicated.
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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.