“In the presence of quinidine , verapamil and cyclosporin (substrates of the P‐glycoprotein (P‐gp)), plasma AUCs of ciprofloxacin were 1.5–2 fold increased, while biliary clearance (1.5–2 fold), intestinal overall and net clearances (2–4 fold and 1.5–8 fold respectively) decreased.”