Dictionary
pa•pav•er•ine
Pronunciation: (pu-pav'u-rēn", -ur-in, pu-pā'vu-rēn", -vur-in), [key]—
n. Pharm.
a white, crystalline, nonnarcotic, alkaloidal powder, C
20H
21NO
4, obtained from opium, but not a morphine derivative and not habit-forming or addicting, used in the treatment of spasms of involuntary muscle, esp. of the stomach, bronchi, and arteries.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.