Is metformin still good after a year? The risks of using expired medication
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5 min read
The U.S. Food and Drug Administration (FDA) requires that all medications, including metformin, carry an expiration date to guarantee the drug's full potency and safety up to that point. Therefore, the simple answer to 'Is metformin still good after a year?' is no, because its effectiveness and safety cannot be guaranteed by the manufacturer beyond that labeled date.
