What are common brand names for metformin?
Metformin is sold under multiple brand names depending on the country and the specific formulation (immediate-release vs extended-release). Common brand names people look for include:
- Glucophage
- Glucophage XR (extended-release)
- Fortamet (extended-release)
- Glumetza (extended-release)
- Riomet (liquid metformin)
How do brand names differ (IR vs XR)?
Brand names often map to how metformin is released in the body:
- Immediate-release metformin brands are typically labeled for standard or “IR” use.
- Extended-release brands (often ending with “XR” or using distinct brand names like Fortamet/Glumetza) are designed for once-daily dosing in many regimens.
Does metformin have brand-name versions besides the ones listed?
Yes. Metformin has both long-standing brands and region-specific brands. If you tell me your country (or what’s on your prescription label), I can narrow it to the exact brand names used where you are.
Are “metformin” and “metformin HCl” the same?
Most brands contain metformin as the active ingredient (often listed as metformin hydrochloride, “metformin HCl”). The brand name is different from the active ingredient; what matters clinically is the dose and whether it is immediate-release or extended-release.
Can the same brand name exist as different strengths?
Yes. Many metformin brands come in multiple strengths (and sometimes different tablet sizes or dosing schedules). Always match the strength and formulation shown on your prescription.
Quick way to identify your exact metformin product
If you share the exact name printed on the package or prescription (including whether it says “ER,” “XR,” or “extended-release”), I can help confirm which metformin formulation it corresponds to and what other brand names it may be associated with.
If you share your country and whether it’s tablets or liquid, I’ll tailor the brand-name list to what’s actually available there.