The effect of carazolol on the cardiovascular responses to adrenaline in stress sensitive pigs

Abstract
The effect of propranolol, carazolol and acebutolol on the heart rate and blood pressure responses to intravenous adrenaline were examined in conscious Pietrain pigs. All three drugs blocked the tachycardia and vasodilatory responses to adrenaline and induced an increase in vasopressor responsiveness. The likely complications from using non-cardioselective β blockers for preventing stress-induced deaths in pigs are discussed.