FDA pharmacologic class
Sulfonylureas
3 medicines are in FDA's class of sulfonylureas (sulfonylureas): glipizide (Glucotrol), glimepiride and glyburide; 3 combination products also contain one. 5 of the 6 are listed from generic labelers (FDA NDC Directory, October 8, 2026). The lowest pharmacy cost is glipizide 5 mg tablet at $0.0339 per tablet (NADAC).
Which medicines are sulfonylureas?
| Medicine | Brand names | Generic labelers (all forms) | Pharmacy cost | Boxed warning | Shortage | Recalls since 2012 |
|---|---|---|---|---|---|---|
| Glipizide | Glucotrol | 31 labelers | $0.0339 per tablet 5 mg tablet | No | No current entry | 9 |
| Glimepiride | none listed | 27 labelers | $0.0507 per tablet 4 mg tablet | No | No current entry | 19 |
| Glyburide | none listed | 16 labelers | $0.0643 per tablet 5 mg tablet | No | A presentation being discontinued | 0 |
| Glyburide and metformin | Glyburide-Metformin | 11 labelers | $0.171 per unit 2.5-500 mg | Yes | No current entry | 1 |
| Glipizide and metformin | none listed | 9 labelers | $0.242 per unit 2.5-250 mg | No | No current entry | 1 |
| Glimepiride and pioglitazone | Duetact | none listed | $10.52 per unit 30-4 | Yes | No current entry | 1 |
Source: FDA Established Pharmacologic Class (NDC Directory, openFDA); CMS NADAC of October 7, 2026; FDA shortages and recalls (FDA files October 8, 2026)
What do pharmacies pay?
Each medicine's most widely listed form, per unit, in the NADAC survey: what pharmacies paid, not what a patient pays; strengths differ, so compare like with like.
Source: CMS National Average Drug Acquisition Cost (NADAC) survey, October 7, 2026: what retail pharmacies paid per unit; not a counter price