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The Riomet brand name has been discontinued in the U.S. for reasons unrelated to safety or effectiveness. Other brand names or generic alternatives may be available. If you’re currently taking this medication, talk to your healthcare provider about safe options for transitioning to a different treatment.

Overview

Riomet was a prescription drug approved by the U.S. Food and Drug Administration (FDA) to help improve blood glucose control in adults with type 2 diabetes. Riomet was considered an adjunct treatment to diet and exercise. Riomet was prescribed alone or with an insulin or sulfonylurea. Riomet was also referred to by its drug name, metformin. 

Riomet was a biguanide. Riomet was believed to work by decreasing the amount of glucose produced by the liver and making the muscle tissue more sensitive to insulin.

How was it taken?

Prescribing information stated that Riomet was generally taken once or twice a day daily with meals. Riomet came as an oral solution.

Side effects

The FDA-approved label for Riomet listed common side effects including diarrhea, nausea, gas, stomach pain, and upset stomach. 

Rare but serious side effects listed for Riomet included lactic acidosis (when the tissues and blood become too acidic) and systemic allergic reaction. 

For more information about this treatment, visit:

Label: Riomet — Metformin Hydrochloride Solution — DailyMed

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