A comparison of the effects of acute versus chronic administration of phenoxybenzamine on pressor responses elicited by the selective alpha 1-adrenoceptor agonist cirazoline in the pithed rat preparation.

Abstract

The effects of nifedipine on the pressor responses to cirazoline were examined in the pithed rat preparation that had received either acute or chronic phenoxybenzamine treatment. Phenoxybenzamine was administered, i.v., to conscious rats, either acutely at 0.01, 0.03, and 0.1 mg/kg, 60 min prior to the commencement of the experiments or chronically at 0.1… (More)

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