Does Omeprazole Interact with Atazanavir Sulfate?
Omeprazole and Atazanavir Sulfate have a unknown drug interaction according to U.S. FDA drug labeling data. Proton-pump inhibitors: omeprazole ↓ atazanavir Coadministration of atazanavir with or without ritonavir and omeprazole may result in loss of virologic response and development of resistance. In HIV-treatment-naive adult patients: The proton-pump inhibitor (PPI) dose should not exceed a dose comparable to omeprazole 20 mg and must be taken approximately 12 hours prior to the atazanavir 300 mg with ritonavir 100 mg dose. 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
- Omeprazole Class
- Proton Pump Inhibitor
- Management
- Consult your pharmacist
- Data Source
- U.S. FDA via OpenFDA
What To Tell Your Doctor or Pharmacist
If you are taking Omeprazole and your doctor is considering prescribing Atazanavir Sulfate (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