REASONS why dobutamine is medicine of choice in :?

Question

CARDIOGENIC SHOCK
and CARDIAC FAILURE?

Answer 1

It has no renovasculature effect, urine output increases BP IMPROVES.
It reduces systemic resistance and improves cardiac performance, thereby decreasing both after load and ventricular filling pressures.
Greater improvement in cardiac out put as compared to dobutamine, for a given increase in myocardial consumption.

Answer 2

Dobutamine increases the contractility of the heart, but does not increase the oxygen demand of the heart muscle as much as dopamine does. Dopamine would otherwise be the drug of choice.