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Hyoscyamine (also known as daturine or duboisine) is a naturally occurring tropane alkaloid and plant toxin. It is a secondary metabolite found in certain plants of the family Solanaceae , including henbane , mandrake , angel's trumpets , jimsonweed , the sorcerers' tree , and Atropa belladonna (deadly nightshade).
A four-week multicenter, randomized placebo-controlled trial by Turner et al. [14] compared Donnatal® tablets (hyoscyamine sulfate - 0.1037 mg; atropine sulfate - 0.0194 mg; scopolamine hydrobromide - 0.0065 mg and phenobarbital - 16.2 mg) to belladonna alkaloids alone (hyoscyamine sulfate - 0.1037 mg; atropine sulfate - 0.0194 mg; scopolamine ...
Atropine, racemic hyoscyamine, from the deadly nightshade (Atropa belladonna) Hyoscyamine, the levo-isomer of atropine, from henbane (Hyoscyamus niger), mandrake (Mandragora officinarum) and the sorcerers' tree (Latua pubiflora). Scopolamine, from henbane and Datura species (Jimson weed)
Important [5] muscarinic antagonists include atropine, hyoscyamine, hyoscine butylbromide and hydrobromide, ipratropium, tropicamide, cyclopentolate, pirenzepine and scopalamine. Muscarinic antagonists such as ipratropium bromide can also be effective in treating asthma , since acetylcholine is known to cause smooth muscle contraction ...
Atropine, a tropane alkaloid, is an enantiomeric mixture of d-hyoscyamine and l-hyoscyamine [35], with most of its physiological effects due to l-hyoscyamine, the 3(S)-endo isomer of atropine. Its pharmacological effects are due to binding to muscarinic acetylcholine receptors. It is an antimuscarinic agent.
All parts of Datura plants contain dangerous levels of the tropane alkaloids atropine, hyoscyamine, and scopolamine, all of which are classified as deliriants, or anticholinergics. [2] [9] The risk of fatal overdose is high among uninformed users, and many hospitalizations occur among recreational users who ingest the plant for its psychoactive ...
Scopolamine, also known as hyoscine, [9] or Devil's Breath, [10] is a natural or synthetically produced tropane alkaloid and anticholinergic drug that is used as a medication to treat motion sickness [11] and postoperative nausea and vomiting.
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