Liquid Amoxicillin Shelf Life and Storage


What is the shelf life of liquid amoxicillin?  How should I store amoxicillin suspension?

How long is liquid amoxicillin good?  Once water is added at the pharmacy the suspension has a shelf life of 14 days for most brands.  Ask you pharmacist to write the expiration date on the bottle when you are picking up the medication.  If you are unsure when the bottle was mixed, it would be best to discard and ask your health care provider for a new prescription.

How should I store liquid amoxicillin?  It is best stored in the refrigerator.  However, most types of plain amoxicillin will be ok at room temperature.  When combined with clavulanic acid [Augmentin and generics], it must be kept under refrigeration.  A quick call to your pharmacy can verify that yours is ok at room temperature.

Always be sure to finish the antibiotic therapy unless your health care provider recommends it be discontinued.  If other medications are needed check to make sure they are ok to take with amoxicillin.   Also, be mindful of potential side effects of liquid amoxicillin.  It is usually tolerated well, but contact your healthcare provider if you think you are having side effects.

I hope you find this information to be helpful.  Please drop me a line if you have a medication or pharmacy related question.

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The pharmaceutical information on this site is provided as an information resource only, and is not to be used or relied on for any diagnostic or treatment purposes. This information is not intended to be patient education and should not be used as a substitute for professional diagnosis and treatment.
1 comment… add one
  • Josie B-Yohnke Link

    My daughter is 15 months old and has had 2 ear infections treated with amoxicillin. Her last ear infection was about 3 months ago and we did not finish the bottle. It’s still sitting in our fridge with about 1/4th of the bottle still full. Is it safe to treat her with this same bottle or will it even have any affect since its been in the fridge for 3 months? She is showing definite signs of an ear infection and I just wonder if I can treat it better with the amoxicillin rather than Tylenol or if I’ll have to get a prescription for her from the doctor for a new bottle.

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