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Table 1 Specificity of receptor antagonists and affinities.

From: Blockade of catecholamine-induced growth by adrenergic and dopaminergic receptor antagonists in Escherichia coli O157:H7, Salmonella enterica and Yersinia enterocolitica

Antagonist Specificity
Phentolamine α-Adrenergic (α12)
Phenoxybenzamine α-Adrenergic (α12)
Prazosin α-Adrenergic (α1)
Labetalol α and β Adrenergic (α1,β)
Propranolol β-Adrenergic (β12)
Chlorpromazine Dopaminergic (D2 > D1)
Haloperidol Dopaminergic (non-selective)
Raclopride Dopaminergic (D1)