TOPICS: Class II antiarrhythmics, beta 1 receptors, gs, camp, calcium, inotropy, heart rate, cardiac output, pacemaker cells, av node, sa node, slope of phase 4, phase 3, if potassium, prolong pr, supraventricular tachycardia, atrial fibrillation, rate control, atrial flutter, metoprolol, dyslipidemia, propranolol, vasospastic angina, esmolol, atenolol, timolol, carvedilol, impotence, copd, asthma, bradycardia, av block, heart failure, inotropy, sedation, sleep disturbances, mask hypoglycemia, pheochromocytoma, alpha blocker, cocaine intoxication, saline, overdose, atropine, glucagon
