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Systematic (IUPAC) name
7-[(3R)-3-Aminoazepam-1-yl]-8-chloro-1-cyclopropyl-6-fluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid
Clinical data
Trade names Besivance
AHFS/ monograph
MedlinePlus a610011
Licence data US FDA:link
Legal status
Routes Ophthalmic
CAS number 141388-76-3
ATC code S01AE08
PubChem CID 10178705
ChemSpider 8354210
Chemical data
Formula C19H21ClFN3O3 

Besifloxacin (INN/USAN) is a fourth-generation fluoroquinolone antibiotic. The marketed compound is besifloxacin hydrochloride. It was developed by SSP Co. Ltd., Japan, and designated SS734. SSP licensed U.S. and European rights to SS734 for ophthalmic use to InSite Vision Incorporated (OTCBB: INSV) in 2000. InSite Vision developed an eye drop formulation (ISV-403) and conducted preliminary clinical trials before selling the product and all rights to Bausch & Lomb in 2003.[1]

The eye drop was approved by the United States Food and Drug Administration (FDA) on May 29, 2009 and marketed under the trade name Besivance.[2]

Besifloxacin has been found to inhibit production of pro-inflammatory cytokines in vitro.[3]


  1. ^ "InSite Vision Reaches Agreement to Sell ISV-403 to Bausch & Lomb" (Press release). InSite Vision. 2003-12-19. Retrieved 2009-08-15. 
  2. ^ "Bausch & Lomb Receives FDA Approval of Besivance, New Topical Ophthalmic Antibacterial for the Treatment of Bacterial Conjunctivitis ("Pink Eye")" (Press release). Bausch & Lomb. 2009-05-29. Retrieved 2009-05-29. 
  3. ^ Zhang JZ, Ward KW (January 2008). "Besifloxacin, a novel fluoroquinolone antimicrobial agent, exhibits potent inhibition of pro-inflammatory cytokines in human THP-1 monocytes". J. Antimicrob. Chemother. 61 (1): 111–6. doi:10.1093/jac/dkm398. PMID 17965029.