Autonomic Pharmacology in Clinical Practice
Start with the big picture
The lesson organizes autonomic drugs by their effects on adrenergic signaling and their clinical uses. Sympathomimetics stimulate α and/or β receptors to support blood pressure, bronchodilation, or cardiac activity; their effects and risks vary by receptor profile and agent. Sympatholytics include α- and β-blockers, central α₂-agonists, and drugs that deplete norepinephrine stores. The material emphasizes practical safety points: titrating intravenous agents, recognizing adverse effects such as reflex bradycardia or first-dose syncope, avoiding selected drugs in asthma or with MAO inhibitors, and sequencing α blockade before β blockade in pheochromocytoma. The broader chapter also introduces cholinergic agents, acetylcholinesterase inhibitors, organophosphate poisoning, and antimuscarinics.
What you'll learn
- Classify sympathomimetics by direct or indirect action and relate them to clinical effects.
- Compare α₁- and β₂-agonists by uses and important adverse effects.
- Explain key precautions for epinephrine, intravenous sympathomimetics, and indirect sympathomimetics.
- Distinguish major sympatholytic classes and identify important clinical safety considerations.
- Recognize the broader chapter topics covering cholinergic and antimuscarinic agents.
Continue your study
Work through the complete notes and reinforce the topic with the study tools available in the full lesson.
