📚 Adrenergic Receptors and Agonists

Question 1

Catecholamines

Answer 1

Neurotransmitters such as norepinephrine, epinephrine, and dopamine, involved in the sympathetic nervous system.

Question 2

MAO Inhibitors

Answer 2

Used as antidepressants, they block monoamine reuptake and can precipitate serious vasopressor episodes if combined with certain foods or drugs.

Question 3

Adrenergic Agonists

Answer 3

Drugs that mimic the action of adrenaline and noradrenaline, leading to physiological responses such as increased heart rate and vasoconstriction.

Question 4

Phenoxybenzamine

Answer 4

Irreversible antagonist at alpha-1 and alpha-2 receptors, mainly used for Pheochromocytoma and other specific conditions.

Question 5

Adrenergic System

Answer 5

Part of the nervous system that involves the release of adrenaline and noradrenaline, affecting various physiological responses.

Question 6

Adrenergic Antagonists

Answer 6

Drugs that block the action of adrenaline and noradrenaline, used to reduce blood pressure and counteract the effects of adrenergic agonists.

Question 7

Norepinephrine Release

Answer 7

Results in activation of adrenergic receptors and is induced by certain drugs affecting monoamine metabolism.

Question 8

Ephedrine

Answer 8

A sympathomimetic amine with long duration that penetrates the CNS; used as a pressor agent and component of decongestant mixtures.

Question 9

Selective Alpha-1 Blockers

Answer 9

Drugs like Prazosin and Terazosin that are used to treat hypertension and benign prostatic hyperplasia, selectively targeting alpha-1 receptors.