What is "cinoxacin"

n. A synthetic antimicrobial drug formerly used to treat urinary tract infections in adults.

Cinoxacin is a quinolone antibiotic that has been discontinued in the U.K. as well the United States, both as a branded drug or a generic.

Cinoxacin was an older synthetic antimicrobial related to the quinolone class of antibiotics with activity similar to oxolinic acid and nalidixic acid. It was commonly used thirty years ago to treat urinary tract infections in adults. There are reports that cinoxacin had also been used to treat initial and recurrent urinary tract infections and bacterial prostatitis in dogs. however this veterinary use was never approved by the United States Food and Drug Administration (FDA). In complicated UTI, the older gyrase-inhibitors such as cinoxacin are no longer indicated.