Oseltamivir

Name: Oseltamivir Drug Interactions
Creator: Dr. Brian Staiger, PharmD, BCPS

5 interactions 68 cited references

Also sold as: Tamiflu Tamiflu®

About Oseltamivir

Oseltamivir is a neuraminidase inhibitor antiviral medication used to treat or prevent influenza infection. Read the full Oseltamivir drug information page →

Medically reviewed by Dr. Brian Staiger, PharmD, BCPS · Updated Aug 10, 2026 · Editorial policy · Data sources

Sources: FDA prescribing information (Structured Product Labeling), the published literature cited in each entry, DDInter 2.0 (a major open-access drug-interaction database), and legacy DrugBank interaction data distributed by the NIH's RxNav service (decommissioned in 2024) — analyzed and reviewed by our pharmacist team. How we build this library →

Most serious with: Influenza Virus Vaccine, Live Nitisinone Vadadustat Warfarin

4 Major 1 Moderate

All (5) Major (4) Moderate (1)

Major

Oseltamivir Influenza Virus Vaccine, Live Reduced efficacy of influenza virus vaccine Details Oseltamivir Nitisinone Increased OAT1 or OAT3 substrate exposure and an increased risk of OAT1 or OAT3 substrate-related adverse effects Details Oseltamivir Vadadustat Vafseo Increased oseltamivir carboxylate exposure and an increased risk of oseltamivir carboxylate-related adverse effect Details Oseltamivir Warfarin Coumadin Increased risk of bleeding Details

Moderate

Oseltamivir Probenecid Increased OAT3 substrate exposure Details

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Educational information only, not medical advice. Always confirm interactions with your pharmacist or prescriber before making any change to your medications.