Answer- A - Cardiac glycosides are classified as inotropic agents. The classes of agents included in the inotropic group of drugs include cardiac glycosides such as digitalis, digitoxin, and digoxin; phosphodiesterase inhibitors such as amrinone and milrinone; and sympathomimetics such as dopamine, dobutamine, isoproterenol, metaraminol, epinephrine and norepinephrine.
According to the Texas Heart Institute, inotropic agents, or inotropes, are medicines that change the force of your heart's contractions. There are two kinds of inotropes: positive inotropes and negative inotropes. Positive inotropes strengthen the force of the heartbeat. Negative inotropes weaken the force of the heartbeat.
