If you’ve been managing type‑2 diabetes, you’ve probably wondered how much a month’s supply of metformin will set you back this year. The short answer: it varies, but you can keep the cost low with a few smart moves. Below we break down the average price, what factors push the number up or down, and practical ways to snag a better deal.
In 2025, a 30‑day pack of generic metformin (500 mg) typically runs between $4 and $12 at most U.S. pharmacies. The brand name Glucophage sits higher, usually $30‑$45 for the same amount. Prices can swing based on dosage, quantity, and whether you use a discount card or insurance.
For a higher‑strength 850 mg tablet, expect about 20‑30 % more cost because the pill count drops. If you need extended‑release (XR) versions, add another $5‑$10 to the monthly bill. Keep in mind that wholesale pricing and regional differences can make the same drug cheaper in some states.
Most private plans list metformin on their formulary with a low co‑pay, often under $10. If you have a high‑deductible plan, you’ll pay the full price until the deductible is met, then the co‑pay kicks in. Medicare Part D usually caps out‑of‑pocket costs at around $15 for generic metformin.
Pharmacy discount cards like GoodRx, SingleCare, or RxSaver can shave $5‑$10 off the cash price. Simply bring the printed coupon or the app code to the counter. Some online pharmacies—especially those that partner with telehealth services—offer a flat $5‑$8 shipping fee plus the drug’s cash price, which can beat local pharmacy rates.
When you buy in bulk (90‑day supply), many pharmacies automatically lower the per‑day cost by 10‑15 %. Just be sure the pharmacy is reputable; look for a U.S.‑based license and secure payment methods.
Here’s a quick checklist to keep your metformin expenses in check:
In short, you don’t have to accept the sticker price you see on the shelf. By mixing insurance benefits, discount cards, and smart ordering habits, most people can keep their monthly metformin bill under $10.
Got any specific price questions or need help finding a legit online pharmacy? Drop a comment or reach out to a pharmacist—getting the right price is just as important as taking the right dose.
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