hyoscine

hyoscine

[hahy-uh-seen, -sin]
noun Pharmacology.

Origin:
1870–75; hyosc(yamus) + -ine2

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To hyoscine
Collins
World English Dictionary
hyoscine (ˈhaɪəˌsiːn)
 
n
another name for scopolamine
 
[C19: from hyosc(yamus) + -ine²]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
American Heritage
Medical Dictionary

hyoscine hy·o·scine (hī'ə-sēn')
n.
See scopolamine.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
Encyclopedia Britannica
Encyclopedia

hyoscine

alkaloid drug obtained from a number of plants of the family Solenaceae, including nightshade, henbane, and jimsonweed. Scopolamine is an effective remedy for motion sickness, probably because of its ability to depress the central nervous system (brain and spinal cord). Like atropine, it has a depressant action on parasympathetic nerves and in larger doses on autonomic ganglia. Scopolamine is also used to dry up secretions and dilate the bronchi during anesthesia and to dilate the pupil during ophthalmological procedures. The drug is the most pharmacologically active of several alkaloid substances found in belladonna, partly because of its greater solubility, which permits more rapid passage to the site of action

Learn more about hyoscine with a free trial on Britannica.com.

Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
Cite This Source
Related Words
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature