Herb Museum

Dionin (ethylmorphine hydrochloride) generally has the same pharmacological qualities as codeine. Formerly used as a cough remedy, its use is presently mainly employed in treatment involving the eyes.

- The Traffic of Narcotics, N.J. Anslinger & W.F. Tompkins
http://www.druglibrary.org/schaffer/people/anslinger/traffic/chapter2.htm