FDA pharmacologic class
Quinolone Antimicrobial
6 medicines are in FDA's class of quinolone antimicrobials: ciprofloxacin (Cipro), ofloxacin (Ocuflox), moxifloxacin (Vigamox), besifloxacin (Besivance), gatifloxacin (Zymaxid) and finafloxacin (Xtoro); 1 combination product also contains one. 5 of the 7 are listed from generic labelers (FDA NDC Directory, October 8, 2026). The lowest pharmacy cost is ciprofloxacin hcl 500 mg tablet at $0.123 per tablet (NADAC).
Which medicines are quinolone antimicrobial?
| Medicine | Brand names | Generic labelers (all forms) | Pharmacy cost | Boxed warning | Shortage | Recalls since 2012 |
|---|---|---|---|---|---|---|
| Ciprofloxacin | Cipro, Ciloxan | 54 labelers | $0.123 per tablet 500 mg tablet | Yes | No current entry | 14 |
| Ofloxacin | Ocuflox | 30 labelers | $1.24 per mL 0.3% eye drops | No | No current entry | 5 |
| Moxifloxacin | Vigamox | 32 labelers | $1.60 per mL 0.5% eye drops | Yes | A presentation being discontinued | 10 |
| Ciprofloxacin and hydrocortisone | Cipro | 1 labeler | $26.91 per mL 0.2-1% | No | No current entry | 0 |
| Besifloxacin | Besivance | none listed | $44.09 per mL 0.6% suspension | No | No current entry | 0 |
| Gatifloxacin | Zymaxid | 3 labelers | $8.85 per mL 0.5% eye drops | No | No current entry | 3 |
| Finafloxacin | Xtoro | none listed | n/a | No | 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