hyoscyamine

Anticholinergic from Atropa belladona ; when racemized following isolation is known as atropine.

hyoscyamine

[n] - a poisonous crystalline alkaloid (isometric with atropine but more potent)
Found on http://www.webdictionary.co.uk/definition.php?query=hyoscyamine

Hyoscyamine

Hy`os·cy'a·mine noun [ See Hyoscyamus .] (Chemistry) 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 shar...
Found on http://www.encyclo.co.uk/webster/H/80

hyoscyamine

<chemical> 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) ...
Found on http://www.mondofacto.com/facts/dictionary?hyoscyamine

hyoscyamine

noun a poisonous crystalline alkaloid (isometric with atropine but more potent); used to treat excess motility of the gastrointestinal tract
Found on http://wordnetweb.princeton.edu/perl/webwn?s=hyoscyamine

hyoscyamine

(hi″o-si´ә-mēn) an anticholinergic and antimuscarinic alkaloid from plant species of the genus Hyoscyamus and others. It is the levorotatory component of atropine with actions similar to those of atropine but with more potent effects. Used primarily as a gastrointestinal or urinary tract antispasmodic a...
Found on http://www.encyclo.co.uk/local/21001

Hyoscyamine

• (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 ne...
Found on http://thinkexist.com/dictionary/meaning/hyoscyamine/

hyoscyamine

(from the article `belladonna`) Belladonna is highly poisonous and is cultivated in France and elsewhere for the medicinal alkaloids hyoscyamine, hyoscine, and atropine, which are ... Commercial henbane, which consists of the dried leaves of Hyoscyamus niger and sometimes of H. muticus, of Egypt, yields three dangerous drugs: ... [2 ...
Found on http://www.britannica.com/eb/a-z/h/90

Hyoscyamine

[6S] The 3 substrates of this enzyme are L-hyoscyamine, 2-oxoglutarate, and O2, whereas its 3 products are (6S)-hydroxyhyoscyamine, succinate, and CO2. This enzyme belongs to the family of oxidoreductases, specifically those acting on paired donors, with O2 as oxidant and incorporation or reduction of oxygen. The oxygen incorporated need no...
Found on http://en.wikipedia.org/wiki/Hyoscyamine_(6S)-dioxygenase

hyoscyamine

Type: Term Pronunciation: hī′ō-sī′ă-mēn Definitions: 1. An alkaloid found in hyoscyamus, belladonna, Duboisia, and stramonium; the levorotatory component of the racemic mixture atropine; used as an antispasmodic, analgesic, and sedative; hyoscyamine hydrobromide is used for the same purposes.
Found on http://www.medilexicon.com/medicaldictionary.php?t=42187

Hyoscyamine

Hyoscyamine (also known as daturine) is a tropane alkaloid. It is a secondary metabolite found in certain plants of the Solanaceae family, including henbane (Hyoscyamus niger), mandrake (Mandragora officinarum), jimsonweed (Datura stramonium), tomato (Solanum lycopersicum) and deadly nightshade (Atropa belladonna). It is the levorotary isomer of a...
Found on http://en.wikipedia.org/wiki/Hyoscyamine
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