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Topical atropine is used as a cycloplegic, to temporarily paralyze the accommodation reflex, and as a mydriatic, to dilate the pupils. [15] Atropine degrades slowly, typically wearing off in 7 to 14 days, so it is generally used as a therapeutic mydriatic, whereas tropicamide (a shorter-acting cholinergic antagonist) or phenylephrine (an α-adrenergic agonist) is preferred as an aid to ...
The modern pharmacological study of Atropa bella-donna extracts was begun by the German chemist Friedlieb Ferdinand Runge (1795–1867). In 1831, the German pharmacist Heinrich F. G. Mein (1799–1864) [21] succeeded in preparing a pure crystalline form of the active substance, named atropine. [22] [23]
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)
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).
The toxic berry of Atropa belladonna which contains the tropane deliriants scopolamine, atropine, and hyoscyamine.. Deliriants are a subclass of hallucinogen.The term was coined in the early 1980s to distinguish these drugs from psychedelics such as LSD and dissociatives such as ketamine, due to their primary effect of causing delirium, as opposed to the more lucid (i.e. rational thought is ...
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 ...
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It is a bitter crystalline alkaloid. Examples of related tropane alkaloids include atropine, hyoscyamine, and hyoscine. Though apoatropine is found in various plants, it can also be prepared by the dehydration of atropine using nitric acid. Apoatropine is used as a pigment. [citation needed]