glimepiride vs glipizide
PlainMeds reviewed this comparison against our methodology in August 2026. It places FDA and CMS record fields side by side, without recommending either medication.
Side-by-side comparison of glimepiride and glipizide. Data from FDA drug databases (Orange Book, NDC Directory, recalls, shortages) covering 20,000+ approved drugs, plus CMS pricing; see our methodology.
Amaryl
Glucotrol
Glimepiride is a medicine that helps lower blood sugar in adults with type 2 diabetes. It works along with diet and exercise.
Glipizide is a medicine that helps lower blood sugar in adults with type 2 diabetes. It works along with diet and exercise.
Glimepiride is used to help control blood sugar levels in adults with type 2 diabetes. It should be used with a healthy diet and regular exercise. This medicine will not work for type 1 diabetes or diabetic ketoacidosis.
Glipizide is used to improve blood sugar control in adults who have type 2 diabetes. It is meant to be used in addition to diet and exercise. This medicine helps your body use insulin better and lowers blood sugar levels.
Glimepiride helps your body release more insulin. Insulin helps move sugar from your blood into your cells for energy. This lowers your blood sugar levels.
Glipizide belongs to a class of drugs called sulfonylureas. It works by helping your pancreas release more insulin. Insulin then helps your body use sugar from the food you eat.
- • Low blood sugar
- • Headache
- • Nausea
- • Dizziness
- • Nausea
- • Diarrhea
- • Skin rash
- • Dizziness
- • Drowsiness
- Blood Glucose Increased 2,970
- Nausea 2,276
- Diarrhoea 2,169
- Fatigue 1,827
- Hypoglycaemia 1,639
- Blood Glucose Increased 6,677
- Nausea 4,444
- Diarrhoea 3,265
- Fatigue 2,994
- Weight Decreased 2,812
Glimepiride can cause low blood sugar, which can be severe. Be careful when driving or operating machinery. If you have an allergic reaction, stop taking glimepiride right away. People with a certain enzyme problem (G6PD deficiency) may get anemia.
Glipizide can cause low blood sugar (hypoglycemia). Watch for symptoms like shakiness, sweating, confusion, and rapid heartbeat. If you have very low blood sugar, get medical help right away. Certain drugs can increase the risk of low blood sugar. Tell your doctor about all the medicines you take.
Tell your doctor if you are pregnant or plan to become pregnant. Glimepiride may not be safe for your baby. It is usually stopped 2 weeks before delivery.
Tell your doctor if you are pregnant or plan to become pregnant. It is not known if glipizide will harm your unborn baby. Talk to your doctor about the best way to control your blood sugar during pregnancy. It is not recommended to breastfeed while taking this medication.
Also Compare, Nearby Drugs
Compare glimepiride with
Compare glipizide with
How to Read This glimepiride vs glipizide Comparison
glimepiride is classified in the Sulfonylurea drug class, while glipizide sits within the Sulfonylurea class. Because both drugs share the same classification, they are often considered interchangeable in theory, but clinical outcomes rarely track that cleanly. Both drugs are prescription-only, so a licensed provider must authorize use.
Adverse event totals above are pulled from the FDA's Adverse Event Reporting System (FAERS). For these top-ranked reactions alone, glimepiride has 10,881 submissions while glipizide has 20,192. Those figures reflect cumulative reporting volume, not per-patient risk, so older, widely dispensed drugs typically look worse on count alone. No direct interaction between these two drugs is listed in our FDA-derived dataset, though co-prescription still warrants pharmacist review. Serious warnings, pregnancy guidance, and contraindications can differ even when indications overlap.
A table cannot represent individual circumstances. Data here is sourced from FDA Structured Product Labels (SPL) and FAERS, both of which update as manufacturers and clinicians submit new information. This registry does not provide medical, treatment, substitution, or medication-change directions for glimepiride or glipizide.
Registry boundary: This comparison displays source-record fields and does not provide individualized medical direction.