Pharmacology The drug effective for treatment as well as prophylaxis of angina pectoris is: A Isosorbide dinitrate B Pentaerythritol tetranitrate C Diltiazem D Dipyridamole 💡 Explanation The drug effective for treatment as well as prophylaxis of angina pectoris is: ✓ Correct Answer: A. Isosorbide dinitrate