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What happens if I drink a lot while I am taking metformin?

Drinking a lot of alcohol while taking metformin (Glucophage, Fortamet), especially over a short period of time (known as "binge drinking"), increases your risk of a side effect called lactic acidosis. This is a buildup of lactic acid in the bloodstream, which in some cases can cause death.

Drinking even small amounts of alcohol when you're taking metformin -- a drug used to control blood sugar levels in people with type 2 diabetes -- can also increase the risk of lactic acidosis. You should not drink alcohol while on this medicine.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.