Published
Different adrenergic receptors, different sites of action. Clonidine affects alpha 2 adrenergic receptors especially in the brain stem. Epinephrine affects all major adrenergic receptors (alpha 1 and 2, beta 1, 2, and 3) and contributes to both vasodilation and vasoconstriction at different sites.
Look up the various adrenergic receptors and what they do. They're a good deal more complicated than you appear to have understood so far.
ijustwanttopass
1 Post
I cannot get this straight.
I thought all adrenergic agonists cause vasoconstriction (like Epi).
But Clonidine is an adrenergic agonist, and it reduces BP.
How?????