strychnine


strychnine
An alkaloid from Strychnos nux-vomica; colorless crystals of intensely bitter taste, nearly insoluble in water. It stimulates all parts of the central nervous system, and was used as a stomachic, an antidote for depressant poisons, and in the treatment of myocarditis. S. blocks the inhibitory neurotransmitter glycine, and thus can cause convulsions. The formerly used salts of s. are s. hydrochloride, s. phosphate, and s. sulfate. It is a potent chemical capable of producing acute or chronic poisoning of humans or animals.

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strych·nine 'strik-.nīn, -nən, -.nēn n a bitter poisonous alkaloid C21H22N2O2 that is obtained from nux vomica and related plants of the genus Strychnos and is used as a poison (as for rodents) and medicinally as a stimulant of the central nervous system

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n.
a poisonous alkaloid produced in the seeds of the East Indian tree Strychnos nux-vomica. In small doses it was formerly widely used in 'tonics'. Poisoning causes painful muscular spasms similar to those of tetanus; the back becomes arched (the posture known as opisthotonos) and death is likely to occur from spasm in the respiratory muscles.

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strych·nine (strikґnīn) a poisonous alkaloid obtained chiefly from Strychnos nux-vomica and other species of Strychnos; it is a central nervous stimulant that can cause fatal convulsions and respiratory arrest. See also strychnine poisoning and strychninism.

Medical dictionary. 2011.

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  • STRYCHNINE — Alcaloïde de formule brute C21H2222, extrait de la graine du vomiquier (Strychnos nux vomica ) ou noix vomique, de la famille des loganiacées. Très toxique, la strychnine est inscrite au tableau A de la pharmacopée. On trouve le vomiquier à… …   Encyclopédie Universelle

  • Strychnine — Strych nine, n. [L. strychnos a kind of nightshade, Gr. ?: cf. F. strychnine.] (Chem.) A very poisonous alkaloid resembling brucine, obtained from various species of plants, especially from species of {Loganiace[ae]}, as from the seeds of the St …   The Collaborative International Dictionary of English

  • strychnine — powerful poisonous alkaloid, 1819, from Fr. strychnine, from Mod.L. Strychnos, the genus name of the plant (nux vomica) from which the poison is obtained, from Gk. strychnon, a kind of nightshade, of uncertain origin. The chemical was discovered… …   Etymology dictionary

  • strychnine — ► NOUN ▪ a bitter and highly poisonous substance obtained from nux vomica and related plants. ORIGIN from Greek strukhnos, denoting a kind of nightshade …   English terms dictionary

  • strychnine — [strik′nin, strik′nēn΄, strik′nīn΄] n. [Fr < ModL Strychnos < L < Gr strychnos, nightshade] a highly poisonous, colorless, crystalline alkaloid, C21H22N2O2, obtained from nux vomica and other similar plants …   English World dictionary

  • Strychnine — Pour les articles homonymes, voir Strychnine (homonymie). Strychnine Molécule de strychnine …   Wikipédia en Français

  • Strychnine — Chembox new ImageFile=Strychnine2.svg ImageSize=200px ImageFile1=Strychnine from xtal 3D balls.png IUPACName= OtherNames=Strychnidin 10 one Section1= Chembox Identifiers CASNo=57 24 9 PubChem=441071 SMILES= [H] [C@] ( [C@@] (C(C=CC=C7) =C7N34)5… …   Wikipedia

  • strychnine — strychnic, adj. /strik nin, neen, nuyn/, n. 1. Pharm. a colorless, crystalline poison, C21H22N2O2, obtained chiefly by extraction from the seeds of nux vomica, formerly used as a central nervous system stimulant. 2. an Indian tree, Strychnos nux… …   Universalium

  • strychnine — Alkaloid obtained from the Indian tree Strychnos nux vomica ; specific blocking agent for the action of the amino acid transmitter glycine. Convulsive effects of strychnine are probably due to its blockage of inhibitory synapses onto spinal cord… …   Dictionary of molecular biology

  • strychnine — [[t]strɪ̱kniːn, AM naɪn[/t]] N UNCOUNT Strychnine is a very poisonous drug which is sometimes used in very small amounts as a medicine …   English dictionary


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