Dopamine
Adrenergic catecholamine which causes increased cardiac output.  It acts on alpha and beta-1 receptors, causing peripheral vasoconstriction, messenteric/renal vessel dilation (lower range doses), and increased inotropic effects.
Indications: Shock, non-traumatic hypotension, CHF/Pulmonary Edema, symptomatic bradycardia, post-resuscitation hypotension refractory to fluid therapy, hypotension refractory to fluids in tx of snakebite,
Common Side Effects: 
Headache, palpitations, tachcardia, hypertension, ectopy, angina, widening of QRS, nausea, vomiting, diarrhea
Potentially Lethal Side Effects: Gangrene
Contraindications:
Hypersensitivity, ventricular fibrillation, tachydysrhythmias, pheochromocytoma, use within 2 weeks of MAOIs (hypertensive crisis), See drug reactions in Notes below.*
Adult dosing*:
2-20 mcg/kg/min, titrated to SBP >90
Pediatric dosing*:
2-20 mcg/kg/min, titrated to age-appropriate BP
Notes:
*  Interactions:
MAOIs within 2 weeks (hypertensive crisis)
Ergots (severe hypertension)
Beta and Alpha blockers (decrease effect of Dopamine)
TCAs (Increase of pressor effects)
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-Dopamine is not first line treatment in patients suspected of volume depletion based on clinical presentation.  Fluid therapy is more appropriate first line treatment.
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Infusion preparation:
Add 400 mg Dopamine to 250 ml NaCl for solution of 1600mcg/ml
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