title: Tachycardias with alternation of the form of the ventricular complexs.
mesh_terms: D000470:Alkaloids / Q000494:pharmacology*; D001145:Arrhythmias, Cardiac; D001281:Atrial Fibrillation; D004562:Electrocardiography; D006352:Heart Ventricles; D006801:Humans; D013610:Tachycardia; D014630:Vagus Nerve / Q000502:physiology*
chemical_list: D000470:Alkaloids
keywords: ALKALOIDS/pharmacology; AURICULAR FIBRILLATION/experimental; ELECTROCARDIOGRAPHY/experimental; TACHYCARDIA/experimental; VAGUS NERVE/physiology