Before you start taking ciprofloxacin, tell your doctor and pharmacist about any prescription, over-the-counter, or other drugs you take ... known to interact with alcohol. But ciprofloxacin ...
The use of prophylactic antibiotics is an option ... one 200 mg oral dose of trimethoprim or one 500 mg oral dose of ciprofloxacin, 1 hour before undergoing flexible cystoscopy.