Metformin Cost & Price Guide
Also sold as: Glucophage, Glumetza, Fortamet, Kazano +11 more
Metformin is a very affordable generic medication. Patients can significantly reduce costs by using discount cards like GoodRx or by purchasing a 90-day supply.
Per month, without insurance
Generic versions may cost significantly less
Discount coupons may reduce out-of-pocket costs
Cost Overview
Metformin is a very affordable generic medication. Patients can significantly reduce costs by using discount cards like GoodRx or by purchasing a 90-day supply.
Generic vs. Brand-Name Price
| Version | Typical Monthly Cost | Notes |
|---|---|---|
metformin (generic)Best Value | $4–$15/month | Same active ingredient as brand; FDA-approved bioequivalent |
| Glucophage(brand) | Typically higher than generic | Manufacturer coupons may reduce cost |
| Glumetza(brand) | Typically higher than generic | Manufacturer coupons may reduce cost |
| Fortamet(brand) | Typically higher than generic | Manufacturer coupons may reduce cost |
Generic Manufacturers
The following companies manufacture FDA-approved generic versions of Metformin. Prices may vary between manufacturers and pharmacies.
Available Forms & Strengths
Metformin is available in the following dosage forms. Prices may vary by form and strength.
Ways to Save on Metformin
Ask for the Generic
Generic metformin contains the same active ingredient and is FDA-approved as bioequivalent to the brand. Ask your pharmacist to dispense the generic to save significantly.
Prescription Discount Cards
Free discount programs like GoodRx, RxSaver, and NeedyMeds can reduce the cost of metformin at most pharmacies. Compare prices before filling.
90-Day Supply
Ordering a 90-day supply through a mail-order pharmacy often costs less per dose than monthly fills. Check with your insurance plan or pharmacy benefit manager.
Patient Assistance Programs
If you're uninsured or underinsured, the manufacturer may offer a patient assistance program (PAP) that provides metformin at low or no cost. Visit NeedyMeds.org or the manufacturer's website.
Insurance Coverage
Most insurance plans, including Medicare Part D and Medicaid, cover metformin (particularly the generic version). Coverage and copay amounts vary by plan tier and formulary. Contact your insurance provider or check your plan's drug formulary to confirm coverage.
Find the Best Price
Coupon & Price Comparison
Patient Assistance Programs (PAP)
If you're uninsured, underinsured, or cannot afford metformin, these programs may provide it at low or no cost.
Frequently Asked Questions About Metformin Cost
What is metformin used for?
Metformin is primarily used to treat type 2 diabetes. It is also used off-label for polycystic ovary syndrome (PCOS) and to help prevent diabetes in people at high risk.
When should I take metformin?
Metformin should be taken with meals to reduce stomach upset. If taking twice daily, take one dose with breakfast and one with dinner.
What are the most common side effects of metformin?
The most common side effects are gastrointestinal: nausea, diarrhea, vomiting, and stomach discomfort. These usually improve after the first few weeks and can be minimized by starting at a low dose and taking with food.
Can metformin cause low blood sugar?
Metformin alone rarely causes hypoglycemia (low blood sugar) because it does not stimulate insulin secretion. However, the risk increases when combined with insulin or sulfonylureas.
More Metformin Information
Medical Disclaimer
The information on RxGuide is intended for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician, pharmacist, or other qualified health provider with any questions you may have regarding a medical condition or medication. Never disregard professional medical advice or delay in seeking it because of something you have read on this website.