I've seen the drug Sodium Morphate used several times on certain tv shows, particularly spy fiction like Alias. It's supposed to be able to slow the heart rate down so that it gives the appearance of death. However, I can barely find any proper articles or references to this on the internet, either on wikipedia or elsewhere. Everywhere I search, it leads me back to Alias or other fiction. I've noticed that it seems vaguely related to rat poison, but I can't be sure. I've also asked a friend studying medicine whether she has heard of this and she says she hasn't.

Has anyone else come across this drug before? And can anyone else verify whether Sodium Morphate actually exists? If so, perhaps you could provide a link to some articles.