Abstract
The effects of isoproterenol, dopamine, dobutamine and the combination of dopamine and dobutamine were compared by using forty-two mongrel dogs in hemorrhagic shock states. The combined use of dopamine and dobutamine was considered to be the most effective in the treatment of hemorrhagic shock in view of the small increase in heart rate, the large and steady increase in cardiac output, the maintenance in renal arterial blood flow and the mild increase in peripheral resistance.
