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A member asked:

How long does it take the drug metformin to expire?

A doctor has provided 1 answer

Expiration: Most drugs expiration date is a year. Some drugs less. There have been studies that looked at the efficacy of drugs post expiration and some were still effective as many as 20 years out. Best is to see your doc and see what's best for you. :)

Dr Weixel and another doctor agreed

Answered 6/20/2019

3.9k views

Thank

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