FDA pharmacologic class
Antimycobacterial
6 medicines are in FDA's class of antimycobacterials: isoniazid, ethambutol, pyrazinamide, clofazimine (Lamprene), pretomanid and streptomycin. 4 of the 6 are listed from generic labelers (FDA NDC Directory, October 8, 2026). The lowest pharmacy cost is ethambutol hcl 400 mg tablet at $0.458 per tablet (NADAC).
Which medicines are antimycobacterial?
| Medicine | Brand names | Generic labelers (all forms) | Pharmacy cost | Boxed warning | Shortage | Recalls since 2012 |
|---|---|---|---|---|---|---|
| Isoniazid | none listed | 14 labelers | $3.40 per tablet 300 mg tablet | Yes | No current entry | 2 |
| Ethambutol | none listed | 4 labelers | $0.458 per tablet 400 mg tablet | No | No current entry | 2 |
| Pyrazinamide | none listed | 5 labelers | $1.31 per tablet 500 mg tablet | No | No current entry | 2 |
| Clofazimine | Lamprene | none listed | n/a | No | No current entry | 0 |
| Pretomanid | none listed | none listed | n/a | No | No current entry | 0 |
| Streptomycin | none listed | 1 labeler | n/a | Yes | No current entry | 0 |
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