Definitions for "digoxin"
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 (3ß,5ß,12ß)-3-[(O-2,6-Dideoxy-ß-D-ribo-hexopyranosyl-(1->4)-O-2,6-dideoxy-ß-D-ribo-hexopyranosyl-(1->4)-2,6-dideoxy-ß-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.
A rate-control medication that is a Digitalis compound, brand name Lanoxin. Digoxin slows down and controls the heart rate by blocking the electrical conduction between the atria and ventricles. See Medications.
A drug often used in the treatment of congestive heart failure. Digoxin makes the heart muscle pump more strongly, slows the rate or speed at which the heart beats and increases blood flow to the kidneys, which helps in the removal of excess fluid from the body. The same drug is sometimes used to treat certain arrhythmias.