- Copyright © 2009 by the American Academy of Pediatrics
Confusion in dosing Tamiflu for Oral Suspension has resulted in dosing errors. These errors occurred because the dosing dispenser packaged with the product has markings only in milligrams (mg), while the dosing instructions provided to the patient were written in milliliters (mL) or teaspoons (tsp).
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.
Following are specific considerations for Tamiflu for Oral Suspension dosing for children older than 1 year of age:
Dosing should be prescribed in mg (see tables below). Caregivers should use the dosing dispenser packaged with the medication, unless otherwise directed by a health care provider.
If the dosing dispenser packaged with Tamiflu oral suspension is lost or damaged, or if the prescriber wishes to use volume-based dosing, appropriate dosages in mL also are provided in the table. In these cases, the prescriber and pharmacist should ensure that a dosing dispenser (e.g., an oral syringe calibrated in mL) is given to the patient or caregiver with instructions for use. The dosing dispenser packaged with the product should be removed and discarded.
Prescribers should avoid prescribing Tamiflu oral suspension in “tsp.” If a prescription is written in “tsp,” the pharmacist should convert the volume to mL and ensure that an appropriate measuring device (e.g., an oral syringe calibrated in mL) is provided. The dosing dispenser packaged with the product should be removed and discarded.