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What Is Glumetza?

Glumetza is a brand of extended-release metformin hydrochloride. It is prescribed to improve blood sugar control in adults with type 2 diabetes alongside diet and exercise. Its tablet releases metformin over time and has different directions from immediate-release metformin.

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What Is Glumetza?

Glumetza is a brand of extended-release metformin hydrochloride. It is prescribed to improve blood sugar control in adults with type 2 diabetes alongside diet and exercise. Its tablet releases metformin over time and has different directions from immediate-release metformin.

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What Is Glumetza Used For?

Glumetza helps adults with type 2 diabetes manage blood sugar. A clinician can prescribe it alone or as part of a treatment plan with other diabetes medicines. It is not intended to treat diabetic ketoacidosis.

How Does Glumetza Work?

Metformin lowers glucose production by the liver. It also improves how the body responds to insulin and uses glucose. The extended-release tablet delivers the medicine gradually after it is swallowed.

How Is Glumetza Taken?

Glumetza is taken once daily with the evening meal. Swallow the tablet whole without crushing, cutting, or chewing it. The prescriber adjusts the dose according to blood sugar response, side effects, and kidney function.

What Are the Risks of Glumetza?

Diarrhea and nausea are reported side effects. Glumetza carries a boxed warning for rare but serious lactic acidosis, with greater risk in people with certain kidney or other health problems. The care team monitors kidney function and may also check vitamin B12 during long-term treatment.

Frequently Asked Questions About Glumetza

Is Glumetza the same as immediate-release metformin?

Both contain metformin, but Glumetza is an extended-release tablet. Their dosing directions differ.

When should Glumetza be taken?

Take it once daily with the evening meal as prescribed.

Can Glumetza be cut in half?

No. The tablet must be swallowed whole and should not be cut, crushed, or chewed.

Why does Glumetza carry a lactic acidosis warning?

Metformin can rarely cause a serious buildup of lactic acid. Kidney impairment and certain other conditions increase that risk.

References

GLUMETZA- metformin hydrochloride tablet, film coated, extended release. DailyMed (National Library of Medicine). https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=fb832474-88d9-4e29-95cd-fbc446944cc4. Date Accessed October 6, 2026.

Metformin. MedlinePlus. https://medlineplus.gov/druginfo/meds/a696005.html. Date Accessed October 6, 2026.

Metformin. StatPearls (NCBI Bookshelf). https://www.ncbi.nlm.nih.gov/books/NBK518983/. Date Accessed October 6, 2026.

Metformin (oral route) - Side effects & dosage. Mayo Clinic. https://www.mayoclinic.org/drugs-supplements/metformin-oral-route/description/drg-20067074. Date Accessed October 6, 2026.

Type 2 diabetes - oral medicines. MedlinePlus. https://medlineplus.gov/ency/patientinstructions/000989.htm. Date Accessed October 6, 2026.