Gemifloxacin (G-Cin) is a broad spectrum antibiotic in the Quinolone family. Gemifloxacin is used to treat certain types of bacterial respiratory infections.

Gemifloxacin is rarely used as an acne treatment, and there is minimal evidence regarding its efficacy for this purpose. Laboratory research indicates that the acne-causing P. acnes bacteria is moderately susceptible to Quinolone family antibiotics, including Gemifloxacin.