Urapidil (hydrochloride)

Urapidil (hydrochloride)

CAT N°: 29004
Price:

From 109.00 92.65

Urapidil is an antagonist of ?1-adrenergic receptors (?1-ARs) and a partial agonist of the serotonin (5-HT) receptor subtype 5-HT1A.{52077,52078} It selectively binds to ?1- over ?2-ARs (IC50s = 0.74 and 42 ?M, respectively) and to 5-HT1A over 5-HT1B and 5-HT2 receptors (IC50s = 0.4, 20.4, and >10 ?M, respectively) in rat cortex.{52077} Urapidil inhibits cAMP accumulation induced by forskolin in calf hippocampus as a functional model for 5-HT1A receptors (EC50 = 390 nM).{52079} It is also a ?1-AR antagonist that inhibits the positive chronotropic response induced by isoproterenol (Item No. 15592) in isolated rat atria (pA2 = 6.05).{52080} Urapidil (1 ?mol/kg, i.v.) lowers mean arterial pressure (MAP) in anesthetized cats, an effect that is reduced by central administration of the 5-HT1A receptor antagonist spiroxatrine.{52081}

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