Isosorbide 2-mononitrate is a pharmacologically active metabolite of isosorbide dinitrate, an organic nitrate isosorbide dinitrate indicated for the prevention of angina pectoris due to coronary artery disease. It activates guanylate cyclase.

Propatylnitrate (or propatyl nitrate), a coronary vasodilator that has been studied for the relief of acute attacks of angina pectoris. However, was revealed that this drug didn’t abolish or diminish the frequency of attacks of angina pectoris.