title: Cardiac, pulmonary and neuromuscular effects of clenbuterol and terbutaline compared with placebo.
abstract: 1 Cardiac, neuromuscular (tremor) and pulmonary effects of multiple single oral doses of clenbuterol (40, 60 and 80 micrograms) and terbutaline (2.5 and 5 mg) were compared with placebo in thirteen patients with reversible obstructive airways disease. 2 The percent change in the bronchodilator and neuromuscular effects of clenbuterol and terbutaline were greater than that of the cardiac activity. 3 Both drugs decreased T wave amplitude and occasionally caused J point ST segment depression. These changes were considered typical of this class of drugs and clinically insignificant. 4 While these drugs had comparable cardiac, pulmonary and neuromuscular effects, clenbuterol, at larger doses, had a higher incidence of transient headaches and nervousness.
mesh_terms: D000328:Adult; D002976:Clenbuterol / Q000009:adverse effects*; D004562:Electrocardiography; D004983:Ethanolamines / Q000009:adverse effects*; D005260:Female; D006321:Heart / Q000187:drug effects*; D006801:Humans; D008168:Lung / Q000187:drug effects*; D008297:Male; D008875:Middle Aged; D009469:Neuromuscular Junction / Q000187:drug effects*; D013726:Terbutaline / Q000009:adverse effects*
chemical_list: D004983:Ethanolamines; D013726:Terbutaline; D002976:Clenbuterol