Metformin Expiration and Storage Guidelines

Metformin Shelf Life and Proper Storage

The shelf life of metformin tablets varies by manufacturer and storage conditions. Typically, metformin should be stored in a cool, dry place, protected from light, at temperatures not exceeding 25 °C (77 °F).

Typical Expiration Window

When stored correctly, metformin pills generally remain potent for 1 to 3 years from the date of manufacture. The expiration date is printed on the bottle or packaging. Using the medication before this date ensures optimal effectiveness.

Handling Expired Medication

If your metformin has passed its expiration date, discard it safely and obtain a new prescription from your healthcare provider. Never use expired medication unless explicitly directed by a medical professional.