Osmosis video - Adrenergic antagonists: Beta blockers

Adrenergic antagonists are a type of drug that blocks the action of adrenaline in the body. Adrenaline is a hormone that is released in response to stress or excitement, and it causes the heart rate to speed up and the blood vessels to narrow.

Beta-blockers are a type of adrenergic antagonist that blocks the sympathetic activation of Beta-adrenergic receptors. Beta-blockers work by blocking the action of adrenaline, which is responsible for the body's fight-or-flight response. This makes them ideal for treating conditions where the body's natural response to stress is harmful, such as high blood pressure and heart arrhythmia.