digitoxin dig`i*tox"in (d[i^]j`[i^]*t[o^]k"s[i^]n), n. (Chem.) A steroid glycoside, one of the cardiotonic chemical substances which is extracted from the foxglove. It is a white, crystalline substance ({C41H64O13}), and is a 3-substituted triglucoside of a steroid, related structurally to digitalin and digoxin. It is used as a cardiotonic for treatment of certain heart conditions, such as congestive heart failure. Chemically it is

(3[beta],5[beta])-3-[(O-2,6-Dideoxy-[beta]-D-ribo-hexopyranosyl-(1[rarr]4)-O-2,6-dideoxy-[beta]-D-ribo-hexopyranosyl-(1[rarr]4)-2, 6-dideoxy-[beta]-D-ribo-hexopyranosyl)oxy]-14-hydroxy-card-20(22)-enolide. The related compounds {digitalin} and {digoxin} are also extracted from the foxglove ({Digitalis lanata} and {Digitalis purpurea}). The class of steroid glycosides having cardiotonic properties are refered to as the cardiac glycoside group. --MI11 [PJC]

The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • Digitoxin — Systematic (IUPAC) name (3β,5β) 3 [(O 2,6 dideoxy β D ribo hexapyranosyl (1 >4) 2,6 dideoxy β D ribo hexopyranosyl)oxy] 14 hydroxycard 20(22) enolide Clinical data …   Wikipedia

  • Digitoxīn — Digitoxīn, s. Digitalin …   Meyers Großes Konversations-Lexikon

  • digitoxin — [dij΄i täk′sin] n. [ DIGI(TALIS) + TOXIN] a glycoside, C41H64O13, extracted from digitalis leaves, like digitalis in physiological action, but more potent …   English World dictionary

  • Digitoxin — Strukturformel Allgemeines Freiname Digitoxin Andere Namen …   Deutsch Wikipedia

  • digitoxin — A cardioactive glycoside obtained from the leaves of Digitalis purpurea; it is more completely absorbed from the gastrointestinal tract than is digitalis. Largely eliminated by hepatic metabolism. SYN: crystalline digitalin. * * * dig·i·tox·in… …   Medical dictionary

  • digitoxin — noun Etymology: International Scientific Vocabulary, blend of New Latin Digitalis and International Scientific Vocabulary toxin Date: circa 1883 a poisonous cardiotonic glycoside C41H64O13 that is the most active constituent of digitalis; …   New Collegiate Dictionary

  • digitoxin — /dij i tok sin/, n. Pharm. a white, crystalline, water insoluble cardiac glycoside, C41H64O13, or a mixture of cardiac glycosides of which this is the chief constituent, obtained from digitalis and used in the treatment of congestive heart… …   Universalium

  • digitoxin — noun A toxic cardiac glycoside, obtained from digitalis, related to cardenolide …   Wiktionary

  • Digitoxin — Di|gi|to|xin 〈n. 11; unz.; Pharm.〉 Glykosid, das aus den Digitalisblättern gewonnen wird u. insbesondere zur Behandlung von Herzkrankheiten eingesetzt wird [<Digi(talis) + Toxin] * * * Di|gi|to|xin [nlat. Digitalis = Fingerhut (Bot.); ↑ Toxin] …   Universal-Lexikon

  • Digitoxin — Di|gi|to|xin 〈n.; Gen.: s; Pl.: unz.; Pharm.〉 Glykosid, das aus den Digitalisblättern gewonnen wird und insbesondere zur Behandlung von Herzkrankheiten eingesetzt wird [Etym.: <Digitalis + Toxin] …   Lexikalische Deutsches Wörterbuch

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