Last reviewed · How we verify

or Metformin HCl alone

Bristol-Myers Squibb · FDA-approved active Small molecule

Metformin HCl reduces hepatic glucose production and improves insulin sensitivity, thereby lowering blood glucose levels in patients with type 2 diabetes.

Metformin HCl reduces hepatic glucose production and improves insulin sensitivity, thereby lowering blood glucose levels in patients with type 2 diabetes. Used for Type 2 diabetes mellitus, Prediabetes (off-label or prevention studies), Polycystic ovary syndrome (PCOS) with insulin resistance.

At a glance

Generic nameor Metformin HCl alone
SponsorBristol-Myers Squibb
Drug classBiguanide
TargetAMP-activated protein kinase (AMPK); mitochondrial glycerophosphate dehydrogenase
ModalitySmall molecule
Therapeutic areaDiabetes
PhaseFDA-approved

Mechanism of action

Metformin is a biguanide that primarily works by decreasing gluconeogenesis in the liver and enhancing peripheral glucose uptake and utilization. It does not stimulate insulin secretion, making it weight-neutral and useful across a broad range of glycemic control needs. The drug also has modest effects on lipid metabolism and may reduce cardiovascular risk.

Approved indications

Common side effects

Key clinical trials

Primary sources

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SourceUsed for
ClinicalTrials.govTrial enrolment, design, endpoints, results

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