Related Experiment Video
Updated: Jul 16, 2026

Evaluation of Hepatic Glucose Production in a Polycystic Ovary Syndrome Mouse Model
Published on: March 5, 2022
Metformin before and during pregnancy and lactation in polycystic ovary syndrome
1Jewish Hospital, Cholesterol Center, ABC Building, Cincinnati, OH, USA. glueckch@healthall.com
Metformin improves the endocrinopathy of polycystic ovary syndrome (PCOS), facilitates conception, appears to reduce first trimester miscarriage and gestational diabetes and does not appear to be teratogenic. The concentrations of metformin in breast milk are generally low and the mean infant exposure to metformin has been reported in the range 0.28-1.08% of the weight-normalized maternal dose, well below the level of concern for breastfeeding. No adverse effects on blood glucose of nursing infants have been reported. Metformin during lactation versus formula feeding appears to have no adverse effects on infants' growth, motor-social development and intercurrent illness during the first 6 months of life. Systematic studies have not yet been done assessing how hyperinsulinemia, polycystic ovary syndrome and metformin may affect lactation.
Metformin improves the endocrinopathy of polycystic ovary syndrome (PCOS), facilitates conception, appears to reduce first trimester miscarriage and gestational diabetes and does not appear to be teratogenic. The concentrations of metformin in breast milk are generally low and the mean infant exposure to metformin has been reported in the range 0.28-1.08% of the weight-normalized maternal dose, well below the level of concern for breastfeeding. No adverse effects on blood glucose of nursing infants have been reported. Metformin during lactation versus formula feeding appears to have no adverse effects on infants' growth, motor-social development and intercurrent illness during the first 6 months of life. Systematic studies have not yet been done assessing how hyperinsulinemia, polycystic ovary syndrome and metformin may affect lactation.
Related Concept Videos
Oral Hypoglycemic Agents: Biguanides and Glitazones
Diabetes Mellitus: Type 2 and Gestational
Oral Hypoglycemic Agents: α-Glucosidase Inhibitors
Acarbose and miglitol are typically...
Pathophysiology of Diabetes
Type 1 diabetes is characterized by autoimmune-mediated destruction of pancreatic β cells, with environmental factors potentially triggering this process in genetically susceptible individuals. Despite many not having a family history, certain genes increase susceptibility, suggesting a...
Pharmacokinetics in Obese Patients: Drug Absorption and Distribution
Ovarian Cycle

