Dose Dependent effects of Dopamine mnemonic
Simplified version of Dopamine's dose-dependent MAJOR effects:
low doses - activates D1 receptors (Gs) - vasodilates renal blood vessels*
med.doses - activates B1 receptors (Gs) - increases heart rate/contractility etc..
high doses - activates A1 (Gq) - vasoconstricts,
*increased renal perfusion, GFR, also vasodilates mesenteric and coronary vessels
source: http://reference.medscape.com/drug/intropin-dopamine-342435















