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Related to hyoscyamine: Hyoscyamine sulfate


A poisonous white crystalline alkaloid, C17H23NO3, isometric with atropine and having similar uses but more potent effects.

[New Latin Hyoscyamus, henbane genus; see hyoscine + -ine.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(ˌhaɪəˈsaɪəˌmiːn; -mɪn)
(Biochemistry) a poisonous alkaloid occurring in henbane and related plants: an optically active isomer of atropine, used in medicine in a similar way. Formula: C17H23NO3
[C19: from New Latin, from Greek huoskuamos (from hus pig + kuamos bean) + amine]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˌhaɪ əˈsaɪ əˌmin, -mɪn)

a poisonous alkaloid, C17H23NO3, obtained from henbane and other solanaceous plants, used as a sedative, analgesic, mydriatic, and antispasmodic.
[1855–60; hyoscyam (us) + -ine2]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.hyoscyamine - a poisonous crystalline alkaloid (isometric with atropine but more potent); used to treat excess motility of the gastrointestinal tract
alkaloid - natural bases containing nitrogen found in plants
poison, poisonous substance, toxicant - any substance that causes injury or illness or death of a living organism
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n hiosiamina
English-Spanish/Spanish-English Medical Dictionary Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
References in periodicals archive ?
FIGURE 2 Therapies for IBS-D by sympton Abdominal pain/ Bloating/ Diarrhea discomfort distension * Alosetron * Rifaximin * Alosetron * Rifaximin * Probiotics (a) * Eluxadoline * Antidepressants * Diet (a) * Rifaximin (TCA, SSRI) (a) * Cholestyramine (a) * Smooth muscle * Diphenoxylate- antispasmodics atropine (a) (dicyclomine, * Loperamide (a) hyoscyamine (a)) * Low FODMAP diet (a) (a) Not approved for IBS-D by the US Food and Drug Administration Abbreviations: FODMAP, fermentable oligosaccharides, disaccharides, mono-saccharides, and polyols; IBS-D, diarrhea-predominant irritable bowel syndrome; SSRI.
Datura contains tropane alkaloids such as hyoscine, hyoscyamine and atropine.
Drugs that often lead to delayed gastric emptying include tobacco, calcium channel blockers, L-dopa, hyoscyamine, anticholinergics, and opiates.
TUESDAY, May 15, 2018 (HealthDay News) -- Hyoscyamine can prevent pacemaker placement in a patient with symptoms caused by a slow ventricular response during atrial fibrillation, according to a case study published online May 15 in the Annals of Internal Medicine.
All the parts of the plant contain toxic alkaloids like hyoscyamine, scopolamine, and atropine.
Amano et al., "Hyoscyamine 6 beta-hydroxylase, an enzyme involved in tropane alkaloid biosynthesis, is localized at the pericycle of the root," Journal of Biological Chemistry, vol.
Sublingual hyoscyamine spray as premedication for colonoscopy: A randomized double-blinded placebo-controlled trial.
Chemical constituents: The alkaloid, hyoscyamine, occurs in all parts of the plant, especially in seeds, roots and leaves.
Analyzes of the secondary metabolites scopolamine and hyoscyamine carried out on Datura stramonium on the same plots show that the average hyoscyamine (HS) content is higher than that of scopolamine (SC) with 0.723 [+ or -] 0.11 mg [g .sup.-1] and 0.277 [+ or -] 0.04 mg.[g.sup.-1] MS [41], this rate of production of these alkaloids depends on several environmental factors, stage of plant, development and edaphic conditions, and environmental humidity [26, 7, 18], in particular phytophagous insects which are selection agents on these alkaloids [51].
Donnatal (Phenobarbital, Hyoscyamine Sulfate, Atropine Sulfate, Scopolamine Hydrobromide), a prescription drug, is classified as possibly effective as an adjunctive therapy in the treatment of irritable bowel syndrome (irritable colon, spastic colon, mucous colitis) and acute enterocolitis.
The substance that leads to anticholinergic poisoning is the belladonna alkaloids they contain, which are hyoscyamine, atropine, and scopolamine (8).
Therefore, treatment with oral muscarinic antagonist hyoscyamine (0.25 mg q6 hours) was initiated, which resulted in improvement in bradycardia and sinus pauses.