fluoroquinolone antibiotic moxifloxacin Avelox (hydrochloride) Vigamox PubChem:152946 CAS:151096-09-2 Avelox Actira (hydrochloride) Moxifloxacin hydrochloride Moxifloxacin is a fourth generation synthetic fluoroquinolone chemotherapeutic agent, and has been shown to be significantly more active than levofloxacin (4 to 8 times more) against Streptococcus pneumoniae. It acts by inhibiting bacterial DNA topoisomerases. ChEBI:63611 ARO:0000074 antibiotic_resistance ChEMBL:CHEMBL32 MXFX