Definitions for "CARDIOTONIC"
A substance that strengthens or regulates heart metabolism without overt stimulation or depression. It may increase coronary blood supply, normalize coronary enervation, relax peripheral arteries (thereby decreasing back-pressure on the valves), or decrease adrenergic stimulation. Examples: magnesium, Crataegus, Selenicereus.
stimulates heart
has a toning and strengthening affect on the heart