R 657 (Metformin hydrochloride 500 mg)
This pill with imprint "R 657" is White, Elliptical / Oval and has been identified as Metformin hydrochloride 500 mg. It is supplied by Actavis.
Metformin is used in the treatment of polycystic ovary syndrome; diabetes, type 2; insulin resistance syndrome; female infertility and belongs to the drug class non-sulfonylureas. There is no proven risk in humans during pregnancy. Metformin 500 mg is not a controlled substance under the Controlled Substance Act (CSA).
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