2 definitions found From The Collaborative International Dictionary of English v.0.48 [gcide]: digoxin \di*gox"in\, n. (Chem.) a steroid glycoside, one of the cardiotonic chemical substances which is extracted from the foxglove. It is a white, crystalline substance ({C41H64O14}), and is a 3-substituted triglucoside of a steroid, related structurally to digitalin and digitoxin. It is used as a cardiotonic for treatment of certain heart conditions, such as congestive heart failure. Chemically it is (3[beta],5[beta],12[beta])-3-[(O-2,6-Dideoxy-[beta]-D-ribo-hexopyranosyl-(1->4)-O-2,6-dideoxy-[beta]-D-ribo-hexopyranosyl-(1->4)-2 , 6-dideoxy-[beta]-D-ribo-hexopyranosyl)oxy]-12,14-dihydroxy-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 glycosides. --MI11 [PJC] From WordNet (r) 2.0 [wn]: digoxin n : digitalis preparation (trade name Lanoxin) used to treat congestive heart failure or cardiac arrhythmia; helps the heart beat more forcefully [syn: {Lanoxin}]
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