Pharmacology General 718cc486 Drug of choice for cystitis ? A Amoxicillin B Chloramphenicol C Cotrimoxazole D Ciprofloxacin High-Yield Explanation Ans. is 'd' i.e., Ciprofloxacin Fluroquinolones form the first line of drugs to be used against cystits. Ciprofloxacin is a fluoroquinolone and so the most appropriate answer.