digitoxin

[ dij-i-tok-sin ]

noun

, Pharmacology.

1. a white, crystalline, water-insoluble cardiac glycoside, C 41 H 64 O 13 , or a mixture of cardiac glycosides of which this is the chief constituent, obtained from digitalis and used in the treatment of congestive heart failure.

digitoxin

/ ˌdɪdʒɪˈtɒksɪn /

noun

1. a white toxic bitter-tasting glycoside, extracted from the leaves of the purple foxglove ( Digitalis purpurea ) and used in the treatment of heart failure and some abnormal heart rhythms. Formula: C 41 H 64 O 13

digitoxin

/ dĭj′ĭ-tŏk′sĭn /

1. A highly active glycoside derived from digitalis and prescribed in the treatment of certain cardiac conditions. Chemical formula: C 41 H 64 O 13 .

Word History and Origins

Origin of digitoxin¹

First recorded in 1880–85; digi(talis) + toxin

Word History and Origins

Origin of digitoxin¹

from digi ( talis ) + toxin

Example Sentences

Foxglove - digitalis - is a source of digitoxin, a glycoside in the drug digitalis, which has been used as a heart stimulant since 1785.

From BBC

And in its action on the heart the digitonin dilates the coronary arteries, according to Macht, while the digitoxin acts on the heart muscle.

From Project Gutenberg

The most powerful is digitoxin C34H54O11, an extremely poisonous and cumulative drug, insoluble in water.

From Project Gutenberg

The tincture contains a fair proportion of both digitalin and digitoxin.

From Project Gutenberg