we studied the effect of phenoxybenzamine chloride ( pob ) and prazosin hydrochloride ( prazosin ) on the cerebral vasoconstriction in the basilar arteries of cats induced by application of oxyhemoglobin ( oxy-hb ) , noradrenaline ( nor ) and prostaglandin f2 alpha ( pgf2 alpha ) .
C0700578
prazosin hydrochloride
C0032912
prazosin