adrenergic receptor chart

2
Receptor type Agonist potency order Selected action of agonist Agonists Antagonists α 1 adrenaline ≥ noradrenaline >> isoprenaline smooth muscle contraction (Alpha-1 agonists ) Noradrenaline Phenylephrine Methoxamine Cirazoline Xylometazoline (Alpha-1 blockers ) Doxazosin Phenoxybenzam ine Phentolamine Prazosin Tamsulosin Terazosin α 2 adrenaline ≥ noradrenaline >> isoprenaline smooth muscle contraction and neurotransmitter inhibition (Alpha-2 agonists ) Clonidine Guanafacin Monoxidine Alpha.methydopa Guanfacine (Alpha-2 blockers ) Yohimbine Idazoxan Tolazoline Rauwolscine . β 1 isoprenaline > adrenaline = noradrenaline heart muscle contraction Noradrenaline Isoprenaline Dobutamine Metoprolol Atenolol β 2 isoprenaline > adrenaline >> noradrenaline smooth muscle relaxation Salbutamol , Albuterol Bitolterol mesylate Formoterol Isoprenaline Levalbuterol Metaproterenol Salmeterol Terbutaline Ritodrine (Beta blockers ) Butoxamine Propranolol Nadolol Carteolol Timolol Sotalol

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Page 1: Adrenergic Receptor Chart

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