These drugs stimulate the activity of the sympathetic nervous system. There are three group: inotropic and vasoconstrictor sympathomimetics, and those used for cardiopulmonary resuscitation. The properties of these drugs vary according to whether they act on alpha or beta adrenergic receptons.
Substances that activate the sympathetic nervous system by imitating the impacts of natural compounds that regulate activities like heart rate, blood circulation, and digestion. Sympathomimetic drugs encompass decongestants, which narrow blood vessels in nasal membranes, and bronchodilators, which expand the narrow air passages within the lungs.