The FDA has issued a Public Health Alert to notify prescribers and pharmacists about potential dosing errors with Tamiflu (oseltamivir) for Oral Suspension. U.S. health care providers usually write prescriptions for liquid medicines in milliliters (mL) or teaspoons, while Tamiflu is dosed in milligrams (mg). The dosing dispenser packaged with Tamiflu has markings only in 30, 45 and 60 mg. The Agency has received reports of errors where dosing instructions for the patient do not match the dosing dispenser.

Health care providers should write doses in mg if the dosing dispenser with the drug is in mg. Pharmacists should ensure that the units of measure on the prescription instructions match the dosing device provided with the drug.

According to the Public Health Alert, prescribers should avoid prescribing Tamiflu oral suspension in teaspoons, as this can lead to inaccurate dosing. If a prescription is written in teaspoons, the pharmacist should convert the volume to mL and ensure that an appropriate measuring device, such as an oral syringe calibrated in mL, is provided.

A letter has been sent to health care professional and pharmacists alerting them to this situation.

Read the complete MedWatch 2009 Safety summary, including links to the FDA Public Health alert, Dear Healthcare Professional letter [Roche] and Information for Pharmacists [CDC], on the FDA web site.



We're here to help!

We live by our creed of “helping those who need it most” and have helped thousands of clients get the justice they desperately needed and deserved. If you feel you have a case or just have questions please contact us for a free consultation. There is no risk and no fees unless we win for you.

Fields marked * may be required for submission.


I never dreamed how much this would mean to me

I received another check today, much to my surprise. Thank you, thank you, thank you! I never dreamed how much this would mean to me in my golden years, as I have had hearing problems for years and needed to update my hearing aids, but with a limited income, found that was impossible. I now have the best hearing aids that I have ever had, thanks to you fighting so hard on my behalf.

—Gladys