What To Do If You Leave Tamiflu Out Of The Refrigerator

In our latest question and answer, the pharmacist discusses the storage requirements of Tamiflu and what to do if it is left out of the refrigerator.


My baby was prescribe liquid tamuflu and I left it out overnight. Is it still okay to give?

Asked by Stefanie On Jan 31, 2018

Answered by
Medical Content Reviewed By PharmacistAnswers Staff

On Jan 31, 2018

Per the manufacturer, Tamiflu suspension can be stored in the refrigerator or at room temperature, although refrigeration is preferred. Refrigeration of Tamiflu increases palatability of the suspension, making it more likely to be well tolerated by children and infants. In addition, refrigeration increases the shelf life of the product once mixed.

Storage Directions For Tamiflu Suspension

Pharmacy Storage (dry power before mixed):

Store dry powder 77ºF; excursions permitted from 59º to 86ºF. Product is good until the listed expiration date.

Reconstituted Suspension Storage (after mixed):

Store constituted suspension under refrigeration for up to 17 days at 36º F to 46º F.  Alternatively, the constituted suspension can be stored at room temperature (77ºF) for up to 10 days. Excursions are permitted in the range of 59º F to 86º F.

If the total prescribed duration of therapy is 10 days or less, the suspension that was left at room temperature may be used completely. You may store it under refrigeration to enhance the palatability of the product but as it was left out at room temperature, it will be considered expired after 10 days.

About the Pharmacist

Dr. Brian Staiger Pharm.D

Dr. Brian Staiger is a licensed pharmacist in New York State and the founder of PharmacistAnswers.com. He graduated from the University At Buffalo with a Doctor of Pharmacy degree in 2010. He has been featured in numerous publications including the Huffington Post as well as a variety of health and pharmacy-related blogs. Please feel free to reach out to him directly if you have any inquiries or want to connect! He's answered thousands of medication and pharmacy-related questions and he's ready to answer yours! Brian.Staiger@PharmacistAnswers.com Office: 716-389-3076

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