Pharmacology What drug is used for prophylaxis against Pneumocystis jirovecii in patients on chemotherapy? A Cotrimoxazole B Amoxicillin C Dexamethasone D Cephalosporin 💡 Explanation What drug is used for prophylaxis against Pneumocystis jirovecii in patients on chemotherapy? ✓ Correct Answer: A. Cotrimoxazole