how dopamine works?
Dopamine works on both adrenergic and dopaminergic receptors, starting from lower dosing, as you go up effects on adrenergic receptors starts to predominate.
Mainly dopaminergic, working on renal and mesenteric vasodilation
Same as lower doses, but with beta1-adrenergic action and produce cardiac stimulation; larger doses stimulate alpha receptors
increased renal blood flow and urine output
same as lower dosing + increased heart rate, cardiac output and contractility
same as intermediate dosing + vasoconstriction thus increased blood pressure
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