Ciprofloxacin is an antibiotic used to treat diseases and infections caused by bacterial contamination. Try to avoid taking large amount of caffeine and dairy foods during the whole Ciprofloxacin treatment period. Ciprofloxacin is one of the most powerful and versatile antibiotic medications available to treat a multitude of infections. Ciprofloxacin is an antibiotic used to treat various types of bacterial infections.