adrenergic receptor chart
TRANSCRIPT
Receptor type
Agonist potency orderSelected action
of agonistAgonists Antagonists
α1adrenaline ≥ noradrenaline >> isoprenaline
smooth muscle contraction
(Alpha-1 agonists)
Noradrenaline Phenylephrine Methoxamine Cirazoline
Xylometazoline
(Alpha-1 blockers) Doxazosin Phenoxybenzamine Phentolamine Prazosin Tamsulosin
Terazosin
α2adrenaline ≥ noradrenaline >> isoprenaline
smooth muscle contraction and neurotransmitter inhibition
(Alpha-2 agonists)
Clonidine Guanafacin Monoxidine Alpha.methydopa
Guanfacine
(Alpha-2 blockers) Yohimbine Idazoxan Tolazoline Rauwolscine
.
β1isoprenaline > adrenaline = noradrenaline
heart muscle contraction
Noradrenaline Isoprenaline
Dobutamine
Metoprolol
Atenolol
β2isoprenaline > adrenaline >> noradrenaline
smooth muscle relaxation
Salbutamol , Albuterol Bitolterol mesylate Formoterol Isoprenaline Levalbuterol Metaproterenol Salmeterol Terbutaline
Ritodrine
(Beta blockers) Butoxamine Propranolol Nadolol Carteolol Timolol Sotalol
β3isoprenaline = noradrenaline > adrenaline
Enhance lipolysis Amibegron
Solabegron