Digitoxin is a cardiac glycoside. The mode of action of digitoxin is to increase the concentration of calcium and sodium inside the cells. This causes the heart muscle fibers to contract more strongly.

An acetyldigitoxin is a class of cardiac glycoside, an acetyl derivative of digitoxin.

available only with a physician's prescription. They are sold in tablet, capsule, liquid, and injectable forms. Commonly used digitalis drugs are digitoxin (Crystodigin) and digoxin (Lanoxin)

cardiac glycosides ( Digoxin -Digitoxin ) used to treat Congestive heart Failures , by inhibting the Na-K ATPase channels on the cardiac muscles so increase the intracellular Na and Ca so increasing the inotropic Force of contraction and Eject more stroke Volume .