Drug Classes & Actions : Beta Blockers Cheat Sheet (DRAFT) by Reuben
This is a draft cheat sheet. It is a work in progress and is not finished yet.
Commonly Prescribed For...
Beta-Adrenergic Blocking Agent
Mechanism Of Action
Located in heart & kidneys: Stimulation produces renin release, and induce positive chronotropic and inotropic effects on the heart, increase cardiac conduction, increase cardiac velocity, and increase cardiac automaticity.
Located lungs, GI tract, liver, uterus, vascular smooth muscle, and skeletal muscle: When stimulated this site produces vasodilation, bronchodilation, uterine relaxation, smooth muscle relaxation, tremor in skeletal muscles, and increases glycogenolysis
Located in fat cells: Stimulation induces lipolysis
Blocks the binding sites on adrenergic beta receptors: These receptors belong to the SNS which control fight or flight response. Beta Blockers compete with adrenaline and noradrenaline (both sympathetic neurotransmitters) at the three beta receptor binding sites.