Does Atazanavir Interact with Voriconazole?
Atazanavir and Voriconazole have a unknown drug interaction according to U.S. FDA drug labeling data. voriconazole REYATAZ with ritonavir in participants with a functional CYP2C19 allele: ↓ voriconazole ↓ atazanavir REYATAZ with ritonavir in participants without a functional CYP2C19 allele: ↑ voriconazole ↓ atazanavir The use of voriconazole in patients receiving REYATAZ with ritonavir is not recommended unless an assessment of the benefit/risk to the patient justifies the use of voriconazole. Patients should be carefully monitored for voriconazole-associated adverse reactions and loss of either voriconazole or atazanavir efficacy during the coadministration of voriconazole and REYATAZ with ritonavir. Coadministration of voriconazole with REYATAZ (without ritonavir) may affect atazanavir concentrations; however, no data are available. Patients taking both medications should consult their healthcare provider before starting, stopping, or changing the dosage of either drug. This information is based on official FDA drug labeling sourced from OpenFDA and the NIH National Library of Medicine.
- Severity
- Unknown
- Voriconazole Class
- Azole Antifungal
- Management
- Consult your pharmacist
- Data Source
- U.S. FDA via OpenFDA
What To Tell Your Doctor or Pharmacist
If you are taking Atazanavir and your doctor is considering prescribing Voriconazole (or vice versa), make sure to:
- Inform your doctor and pharmacist of all current medications, including over-the-counter drugs and supplements
- Ask whether the benefits of combining these medications outweigh the risks for your specific situation
- Ask what symptoms to watch for that would indicate the interaction is causing problems
- Never stop or change either medication without first consulting your healthcare provider