Dive into a comprehensive 11-minute video lecture on adrenergic antagonists, focusing on alpha and beta blockers. Explore the function of adrenergic receptors, mechanism of action, and classification of various blockers. Learn about selective and non-selective alpha and beta blockers, including first, second, and third-generation drugs. Discover how these medications lower blood pressure and heart rate, making them valuable in treating cardiovascular diseases. Gain insights into specific drugs such as Phentolamine, Prazosin, Propranolol, and Carvedilol. Understand the importance of these medications in managing hypertension, congestive heart failure, arrhythmias, and angina.