Use With CautionFDA C

Is Metformin Safe During Pregnancy?

Metformin is increasingly used in pregnancy for PCOS and gestational diabetes, but insulin remains preferred.

Last reviewed: April 2026

Safety Summary

Metformin is increasingly used in pregnancy for PCOS and gestational diabetes, but insulin remains preferred.

Category C — Use Cautiously

Animal studies show adverse effects; weigh benefits vs. risks.

Trimester-by-Trimester Guide

1st Trimester (Weeks 1–12)

Sometimes continued for PCOS. Discuss with doctor.

2nd Trimester (Weeks 13–26)

Insulin is preferred for gestational diabetes. Metformin is second-line.

3rd Trimester (Weeks 27–40)

May be continued if needed. Insulin usually preferred.

Brands Available in India

GlycometGlucophageObimet

Safer Alternatives During Pregnancy

Your doctor may suggest one of these alternatives. Always confirm with your obstetrician.

Insulin (preferred) Diet control Exercise

Frequently Asked Questions

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Medical Disclaimer: Pregnancy safety information is based on available clinical data and FDA classifications. This page is for educational purposes only and does not substitute professional medical advice. Every pregnancy is different — consult your doctor or gynaecologist before taking any medicine. Drug safety classifications may have been updated; always verify current guidelines.