Definition of "Demerol"

‘She must of[sic] grabbed some pills. There's half a dozen kinds up there – even demerol.’

1953, Raymond Chandler, The Long Goodbye, Penguin, published 2010, page 307

“Anyway, when he came out of Patsy's room, I grabbed him by the arm and said, ‘Gee whiz, doc, haven't you got a couple of pills for me—even demerol?’ ” / Willie broke off to explain. “That's a synthetic. We call them demmies. If you can't buy H or M, why, demmies will do the trick.”

1956, Jess Stearn, Sisters of the Night: The Startling Story of Prostitution in New York Today, New York: Julian Messner, Inc., page 59

Gately doesn’t miss weed much. The shocker-type AA Miracle is he doesn’t much miss the Demerol, either, today.

1996, David Foster Wallace, Infinite Jest […], Boston, Mass., New York, N.Y.: Little, Brown and Company, page 361