oseltamivir, Tamiflu

  • Pharmacy Author:
    Omudhome Ogbru, PharmD

    Dr. Ogbru received his Doctorate in Pharmacy from the University of the Pacific School of Pharmacy in 1995. He completed a Pharmacy Practice Residency at the University of Arizona/University Medical Center in 1996. He was a Professor of Pharmacy Practice and a Regional Clerkship Coordinator for the University of the Pacific School of Pharmacy from 1996-99.

  • Medical and Pharmacy Editor: Jay W. Marks, MD
    Jay W. Marks, MD

    Jay W. Marks, MD

    Jay W. Marks, MD, is a board-certified internist and gastroenterologist. He graduated from Yale University School of Medicine and trained in internal medicine and gastroenterology at UCLA/Cedars-Sinai Medical Center in Los Angeles.

What is the dosage for oseltamivir?

Oseltamivir is administered orally. For the best results, treatment should begin within 2 days of symptom onset or exposure.

  • The recommended dose for treating adults with flu is 75 mg twice daily for five days.
  • Children are treated with 30-75 mg twice daily for five days. Dosing depends on body weight.
  • The adult dose for prevention of flu is 75 mg daily for 10 days. Children receive 30-75 mg once daily for 10 days.

Which drugs or supplements interact with oseltamivir?

Oseltamivir potentially may interfere with the action of the live attenuated flu vaccine that is given by injection because oseltamivir prevents viral replication. Therefore, live attenuated flu vaccine should not be administered within two weeks before or 48 hours after administration of oseltamivir.

Quick Guide10 Foods to Eat When You Have the Flu in Pictures

10 Foods to Eat When You Have the Flu in Pictures
FDA Logo

Report Problems to the Food and Drug Administration

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

See more info: oseltamivir on RxList
RxList Logo

Need help identifying pills and medications?

Use the pill identifier tool on RxList.

Subscribe to MedicineNet's Newsletters

Get the latest health and medical information delivered direct to your inbox!

By clicking Submit, I agree to the MedicineNet's Terms & Conditions & Privacy Policy and understand that I may opt out of MedicineNet's subscriptions at any time.

Health Solutions From Our Sponsors