GLUMETZA vs RIOMET

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 23, 2026·How we rate

Attribute	GLUMETZA	RIOMET
Rating	New	70/100
Pharmacy pays	~$0.74 /30	~$0.74 /30
Type	RX	RX
Active ingredient	METFORMIN HYDROCHLORIDE	METFORMIN HYDROCHLORIDE
Manufacturer	Santarus	Ranbaxy
Dosage forms	Tablet, extended release	Solution
Drug class	Biguanide	Biguanide
Boxed warning	Boxed warning	Boxed warning
Half-life	about 6.2 hours (plasma elimination half-life in adults with normal kidney function)	about 6.2 hours (plasma elimination half-life in adults with normal kidney function)
Treats	Type 2 Diabetes Mellitus	Type 2 Diabetes Mellitus

glumetza riomet

Rating

New

70/100

Pharmacy pays

~$0.74 /30

Type

Active ingredient

METFORMIN HYDROCHLORIDE

Manufacturer

Santarus

Ranbaxy

Dosage forms

Tablet, extended release

Solution

Drug class

Biguanide

Boxed warning

Half-life

about 6.2 hours (plasma elimination half-life in adults with normal kidney function)

Treats

Type 2 Diabetes Mellitus

Get riomethigher-rated option

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Frequently asked questions

Which is cheaper, Glumetza or Riomet?

Pharmacies pay about the same to acquire either one — roughly $0.74 for a 30-count supply, per the CMS NADAC survey. That is not what you will be charged: your price is set by your insurer and the pharmacy, not by what the drug cost them.

What is the difference between Glumetza and Riomet?

Both Glumetza and Riomet share the active ingredient Metformin Hydrochloride.

Ratings are based on FDA regulatory (recall-safety) data. This comparison is for general reference only — not medical advice. Always consult a licensed professional before choosing or switching a medication.