Atazanavir and Haloperidol interaction
Atazanavir and Haloperidol: 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 Atazanavir (REYATAZ) label · effective 2024-12-05
…phenobarbital, phenytoin Antiarrhythmics Amiodarone (with ritonavir), quinidine (with ritonavir) Antimycobacterials Rifampin Antineoplastics Apalutamide, encorafenib, irinotecan, ivosidenib Antipsychotics Lurasidone (with ritonavir), pimozide Benzodiazepines Orally administered midazolam a , triazolam Ergot Derivatives Dihydroergotamine, ergonovine, ergotamine, methylergonovine…
Antipsychotics: pimozide ↑ pimozide Coadministration of REYATAZ with pimozide is contraindicated.
From the Haloperidol (Haloperidol Decanoate) label · effective 2025-02-19
The effect of CYP3A4 inhibition and of decreased CYP2D6 enzyme may be additive.
Examples include: CYP3A4 inhibitors – alprazolam; itraconazole, ketoconazole, nefazodone, ritonavir.
Taking more than these two? Interactions stack. Check your whole list at once; it stays in your browser.
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.