Modifieddrug info
Modified 24 HR metformin hydrochloride 500 MG Extended Release Oral Tablet
What it is used for
Metformin hydrochloride extended-release tablets are indicated as an adjunct to diet and exercise to improve glycemic control in adults with type 2 diabetes mellitus. Metformin hydrochloride extended-release tablets are a biguanide indicated as an adjunct to diet and exercise to improve glycemic control in adults with type 2 diabetes mellitus.
Text above is quoted in full from the FDA-approved drug label published by openFDA, effective January 31, 2026. Matched to this product by RxNorm code. Cross-references to other sections of the full prescribing information have been removed, since they point to a document not shown here. Nothing else is changed: no sentence is shortened, reworded or summarised.
Description
Metformin Hydrochloride Extended-Release Tablets, USP contains the biguanide antihyperglycemic agent metformin in the form of monohydrochloride salt. The chemical name of metformin hydrochloride is N,N-dimethylimidodicarbonimidic diamide hydrochloride. The structural formula is as shown: Metformin hydrochloride is a white crystalline powder with a molecular formula of C 4 H 11 N 5
HCl and a molecular weight of 165.62 g/mol. Metformin hydrochloride is freely soluble in water, slightly soluble in alcohol, practically insoluble in acetone and in methylene chloride. The pKa of metformin is 2.8 and 11.5 at 32°C. The pH of a 5% aqueous solution of metformin hydrochloride is 6 to 7. Metformin Hydrochloride Extended-Release Tablets, USP contain 500 mg or 1,000 mg of metformin hydrochloride, which is equivalent to 389.93 mg or 779.86 mg metformin, respectively. Each 500 mg and 1,000 mg tablet contains ammonio methacrylate copolymer dispersion type A, ammonio methacrylate copolymer dispersion type B, hypromellose, magnesium stearate, povidone K 30, talc, titanium dioxide, and triethyl citrate. The tablets are imprinted using a water-soluble black ink which contains shellac, black iron oxide, propylene glycol and ammonium hydroxide. Meets USP Dissolution Test 12. structure.jpg
Text above is quoted in full from the FDA-approved drug label published by openFDA, effective January 31, 2026. Matched to this product by RxNorm code. Cross-references to other sections of the full prescribing information have been removed, since they point to a document not shown here. Nothing else is changed: no sentence is shortened, reworded or summarised.
This page reproduces regulatory text for reference. It is not medical advice, and KenyRx is not a pharmacy or a prescriber. Talk to a doctor or pharmacist about whether a medicine is right for you.
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