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Sympathetic Nervous System (Action at catecholamine synthesis (Tyrosine…
Sympathetic Nervous
System
Action at
catecholamine synthesis
Tyrosine Hydroxylase inhibitor
(Rate limiting step)
Metyrosine
DOPA decarboxylase
inhibitors
Carbidopa
Benserazide
VMAT-2 inhibitor
Reversible
Tetrabenazine
Deutetrabenazine
Valbenazine
Irreversible
Reserpine
Adrenergic neuron blocker
Guanethidine
Bretylium
Inhibit termination of action
Catecholamine
reuptake inhibitors
Amphetamines
Cocaine
α
Bocker
Non-slective
α and β
Non competitive
irreversible
Phenoxbenzamine
Competitive
reversible
Phentolamine
Tolazoline
Cholrpromazine
Ergotamine
α1
α1A
Tamsulosin
Silodosin
α1A and α1B
Prazosin
Terazosin
Alfuzosin
Doxazosin
α2
Yohimbine
Idoxazan
Mirtazapine
β
AGONISTS
ANTAGONISTS
β1
β2
β3
Merabegron
Salbutamol
Butaxamine
Dobutamine
Atenolol
Metoprolol
α1
Phenylephrine
Prazosin
α2
Clonidine
Yohimbine