I had to confirm this truly amazing tale I just head from a colleague of mine to believe it.
He made important contributions to the […] treatment of erectile dysfunction, and is perhaps best known for an unusual scientific presentation at the 1983 Las Vegas meeting of the American Urological Association, where he removed his trousers to show the audience his chemically induced erection and invited them to inspect it closely. He had injected papaverine into his penis in his hotel room before the presentation.
Papaverine causes direct smooth muscle relaxation and consequent filling of the corpus cavernosum with blood resulting in erection. I am just glad I don’t go to Urologists’ conferences. Or Gynaecologists’ for that matter.