hyoscyamine

American  

[hahy-uh-sahy-uh-meen, -min] / ˌhaɪ əˈsaɪ əˌmin, -mɪn /

noun

Pharmacology.

1. a poisonous alkaloid, C 17 H 23 NO 3 , obtained from henbane and other solanaceous plants, used as a sedative, analgesic, mydriatic, and antispasmodic.

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hyoscyamine British  

/ ˌhaɪəˈsaɪəˌmiːn, -mɪn /

noun

1. a poisonous alkaloid occurring in henbane and related plants: an optically active isomer of atropine, used in medicine in a similar way. Formula: C 17 H 23 NO 3

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Etymology

Origin of hyoscyamine

First recorded in 1855–60; hyoscyam(us) + -ine ²

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Example Sentences

See Examples For:

hyoscyamine

They then compared the activity of the HDH-encoding gene from A. belladonna with equivalents from other plants, and finally selected the gene from Circe’s jimsonweed as being optimal for hyoscyamine and scopolamine production.

From Nature ● Sep. 1, 2020

Srinivasan and Smolke4 engineered the yeast Saccharomyces cerevisiae to make the drugs hyoscyamine and scopolamine from glucose and amino acids.

From Nature ● Sep. 1, 2020

Its active principle is a mixture of a kind of atropine and hyoscyamine, but the true nature of the component alkaloids has never been fully determined.

From The Gray Phantom by Herman Landon

I think, therefore, that both Planta and Schmidt must have worked with a mixture of atropine and hyoscyamine.

From Scientific American Supplement, No. 324, March 18, 1882 by Various

So Terence McGuire learned that Alvord Hendricks bought some hyoscyamine, on a doctor's prescription, about a month ago—the same to be used to relieve a serious case of earache.

From Raspberry Jam by Carolyn Wells

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