FDA pharmacologic class
Alpha blockers
9 medicines are in FDA's class of alpha-adrenergic blockers (alpha blockers): carvedilol (Coreg), doxazosin (Cardura), prazosin, terazosin (Tezruly), tamsulosin, silodosin, alfuzosin (Uroxatral), phenoxybenzamine and 1 more; 1 combination product also contains one. All 10 are listed from generic labelers (FDA NDC Directory, October 8, 2026). The lowest pharmacy cost is carvedilol 6.25 mg tablet at $0.0179 per tablet (NADAC).
Which medicines are alpha blockers?
| Medicine | Brand names | Generic labelers (all forms) | Pharmacy cost | Boxed warning | Shortage | Recalls since 2012 |
|---|---|---|---|---|---|---|
| Carvedilol | Coreg | 41 labelers | $0.0179 per tablet 6.25 mg tablet | No | No current entry | 22 |
| Doxazosin | Cardura | 29 labelers | $0.0752 per tablet 1 mg tablet | No | No current entry | 11 |
| Prazosin | none listed | 33 labelers | $0.0842 per capsule 1 mg capsule | No | A presentation being discontinued | 10 |
| Terazosin | Tezruly | 21 labelers | $0.106 per capsule 2 mg capsule | No | No current entry | 2 |
| Tamsulosin | none listed | 38 labelers | $0.05 per capsule 0.4 mg capsule | No | No current entry | 3 |
| Silodosin | none listed | 13 labelers | $0.319 per capsule 8 mg capsule | No | No current entry | 1 |
| Alfuzosin | Uroxatral | 10 labelers | $0.105 per tablet 10 mg tablet | No | No current entry | 1 |
| Phenoxybenzamine | none listed | 5 labelers | n/a | No | A presentation being discontinued | 2 |
| Dutasteride and tamsulosin | Jalyn | 3 labelers | $1.97 per unit 0.5-0.4 | No | No current entry | 1 |
| Phentolamine | Ryzumvi, Oraverse | 2 labelers | n/a | No | No current entry | 3 |
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