Who manufactures metformin?

Which companies manufacture metformin?

Metformin is a long-established generic medicine, so it is manufactured by many companies worldwide rather than a single manufacturer. In the U.S., you’ll typically see multiple “manufactured for/marketed by” and “distributed by” names on pharmacy labels because different generic manufacturers supply it.

What does “manufacturer” mean on metformin prescriptions?

On prescription packaging, the company name can refer to:
- the actual generic manufacturer (the plant/company producing the tablets or extended-release version), and/or
- the company that markets the product (often listed as “manufactured for” or “distributed by”).

Is metformin branded or generic?

Metformin is widely available as generic metformin (including immediate-release and extended-release formulations). Branded versions exist in some markets, but in many countries metformin is predominantly supplied as generics from multiple manufacturers.

If you share your country (or the exact product name—e.g., “metformin HCl ER” or the label/company name from your bottle), I can narrow down the specific manufacturer(s) for that exact product.