From a New York Times obit by Clay Risen headlined “Ferid Murad, 86. Pharmacologist Who Shared Nobel Prize. Is Dead”:

Ferid Murad, a pharmacologist whose research into the effects of nitric oxide on the heart and blood vessels enabled widespread advancements in the treatment of cardiovascular disease, hypertension and erectile dysfunction, and which earned him a share in a Nobel Prize in 1998, died at his home in Menlo Park, Calif.

Doctors had been prescribing nitroglycerin for angina and other heart ailments for over a century — including, coincidentally, to Alfred Nobel, who founded the Nobel Prizes.