Metformin is a medicine used to help control high blood sugar in people with type 2 diabetes. It helps your body use its natural sugar-regulating system more effectively.
- $0.75/month — typical 30-day cash price (NADAC median)
- $0.01 – $14.61 — unit price range across dosages
- $2.25 — estimated 90-day supply cost
- Generic available
- Brand name: Glucophage
- Category: Diabetes
Cheapest way to get Metformin
With insurance vs. without insurance
Always compare your insurance copay against cash + GoodRx — sometimes cash is cheaper.
What Is Metformin?
What Is Metformin Used For?
- High blood sugar in adults with type 2 diabetes
- High blood sugar in children 10 years and older with type 2 diabetes
- Helping the body manage sugar along with diet and exercise
How Does Metformin Work?
Dosage Form & Route
This medicine is a tablet that you swallow by mouth, usually taken during your meals.
This is general information only. Always follow your doctor's or pharmacist's instructions for your specific dosage.
Important Warnings
- Tell your doctor if you have severe kidney problems
- Avoid drinking too much alcohol while taking this medicine
- It may lower your Vitamin B12 levels over time
- Talk to your doctor before having medical scans that use special dyes (contrast)
- Watch for signs of a rare but serious acid buildup in your blood, such as feeling very weak, having muscle pain, or feeling very sleepy
Common Side Effects
The following side effects have been reported with Metformin. This is not a complete list. Contact your healthcare provider if you experience unexpected symptoms.
Generic vs. Brand Name
Yes — a generic version of Metformin is available and is typically much cheaper than the brand-name version.
The brand name for Metformin is Glucophage. Generic versions contain the same active ingredient, dosage, and strength, but may cost significantly less.
This is an FDA-approved generic medication and is not a controlled substance.
Frequently Asked Questions
What is Metformin used for?
Metformin is used to help lower blood sugar levels in people with type 2 diabetes. It is meant to be used along with a healthy diet and regular exercise to keep your sugar levels in a safe range.
Does Metformin have a generic?
Yes, Metformin Hydrochloride is the generic version of the medicine. It works just as well as brand-name versions but is usually much more affordable.
How much does Metformin cost without insurance?
Based on current information, the monthly cash price is about $0.75. You can also get a 90-day supply for around $2.25.
What are common side effects of Metformin?
The most common side effects are stomach-related, like diarrhea, gas, or feeling sick to your stomach. These side effects often get better after you have taken the medicine for a while and your body gets used to it.
How to Save on Metformin
- Use GoodRx or RxSaver to instantly compare prices at pharmacies near you
- Ask your doctor about switching to the generic — it contains the same active ingredient at a fraction of the price
- Ask your pharmacist for a 90-day fill — it often costs less per pill than a monthly prescription
- Compare your insurance copay against the cash + GoodRx price — cash can sometimes be cheaper
- Check Mark Cuban's Cost Plus Drugs — transparency pricing often undercuts traditional pharmacies
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