Definition of Hyoscyamine

1. Noun. A poisonous crystalline alkaloid (isometric with atropine but more potent); used to treat excess motility of the gastrointestinal tract.




Definition of Hyoscyamine

1. n. An alkaloid found in henbane (Hyoscyamus niger), and regarded as its active principle. It is also found with other alkaloids in the thorn apple and deadly nightshade. It is extracted as a white crystalline substance, with a sharp, offensive taste. Hyoscyamine is isomeric with atropine, is very poisonous, and is used as a medicine for neuralgia, like belladonna. Called also hyoscyamia, duboisine, etc.

Definition of Hyoscyamine

1. Noun. (chemistry) an alkaloid, the stereoisomer of atropine, used medicinally to treat abdominal pain and similar conditions ¹

¹ Source: wiktionary.com

Definition of Hyoscyamine

1. [n -S]

Medical Definition of Hyoscyamine

1. A chemical with the formula C17H23O3N which is a white powder at room temperature and which melts at 108.5 degrees C. It comes from plants such as henbane and belladona. Hyoscyamine is used medically as the levorotatory isomer of racemic atropine and as an anticholinergic alkaloid. (08 Mar 2000)

Hyoscyamine Pictures

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Lexicographical Neighbors of Hyoscyamine

hyoidean
hyoids
hyomandibula
hyomandibular
hyomandibular cleft
hyomandibulas
hyomental
hyopastron
hyopharyngeus
hyoplastra
hyoplastron
hyoplastrons
hyoscine
hyoscine hydrobromide
hyoscines
hyoscyamine (current term)
hyoscyamine (6S)-dioxygenase
hyoscyamine sulfate
hyoscyamines
hyoscyamus
hyoshigi
hyosternal
hyosternum
hyostylic
hyote
hyotes
hyothyroid
hyp-
hyp.
hypabyssal

Literary usage of Hyoscyamine

Below you will find example usage of this term as found in modern and/or classical literature:

1. Proceedings of the American Pharmaceutical Association at the Annual Meeting by American Pharmaceutical Association, National Pharmaceutical Convention (1903)
"It also acts like hyoscyamine upon the heart and the terminations of the motor ... Assuming that atropine consists of equal parts of 1-hyoscyamine and the ..."

2. Allen's Commercial Organic Analysis: A Treatise on the Properties, Modes of by Alfred Henry Allen (1912)
"If hyoscyamine be kept at a temperature slightly above its mp, ... Conversion of hyoscyamine into atropine also occurs when its cold alcoholic solution is ..."

3. Commercial Organic Analysis by Alfred Henry Allen, Wm. A. Davis (1912)
"If hyoscyamine be kept at a temperature slightly above its mp, ... Conversion of hyoscyamine into atropine also occurs when its cold alcoholic solution is ..."

4. Journal of Nervous and Mental Disease by American Neurological Association, Philadelphia Neurological Society, Chicago Neurological Society, New York Neurological Association, Boston Society of Psychiatry and Neurology (1882)
"It is found most plentifully in the seeds, in less quantity in the leaves, of hyoscyamus niger and hyoscyamus albus. According to Geiger, hyoscyamine ..."

5. Stereochemistry by Alfred Walter Stewart (1907)
"Atropine possesses a more powerful stimulant action on the reflexes of the spinal cord lhan hyoscyamine. On Ihe olher hand, hyoscyamine is ..."

6. American Druggist (1888)
"Will, however, has prepared from his lot of hyoscyamine a whole series of crystallized salts, ... Sulphate of hyoscyamine crystallizes from alcohol in fine, ..."

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