Application ARC 239 is a potent α-adrenoceptor blocking drug, competitively antagonizing pressor responses to adrenaline and inhibiting pressor responses to noradrenaline, phenylephrine, tyramine, and dimethylphenylpiperazinium. Biochem/physiol Actions ARC 239 is a selective α-2B adrenergic blocker. Although ARC-239, like prazosin, also has some alpha-1 antagonist activity, it is used most commomly to differentiate alpha-2A/D from alpha-2B and alpha-2C subtypes rather than for any alpha-1 inhibition.. |
Application ARC 239 is a potent α-adrenoceptor blocking drug, competitively antagonizing pressor responses to adrenaline and inhibiting pressor responses to noradrenaline, phenylephrine, tyramine, and dimethylphenylpiperazinium. Biochem/physiol Actions ARC 239 is a selective α-2B adrenergic blocker. Although ARC-239, like prazosin, also has some alpha-1 antagonist activity, it is used most commomly to differentiate alpha-2A/D from alpha-2B and alpha-2C subtypes rather than for any alpha-1 inhibition.. |