Anatomy Which of the following is an active metabolite of another drug and is available as a separate drug for the treatment of angine? A Isosorbide mononitrate B Isosorbide dinitrate C Nitroglycerine D Propanolol 💡 Explanation Which of the following is an active metabolite of another drug and is available as a separate drug for the treatment of angine? ✓ Correct Answer: A. Isosorbide mononitrate