|
Drug |
Dosage |
Hemodynamic Actions |
|
NorepinephrineSome Trade Names |
4 mg/250 mL or 500 mL 5% D/W continuous IV infusion at 8–12 μg/min initially, then at 2–4 μg/min as maintenance, with wide variations |
α-Adrenergic: vasoconstriction β-Adrenergic: inotropic and chronotropic effects* |
|
DopamineSome Trade Names |
400 mg/500 mL 5% D/W continuous IV infusion at 0.3 mL (0.25 mg)–1.25 mL (1 mg)/min 2–10 μg/kg/min for low dose 20 μg/kg/min for high dose |
α-Adrenergic: vasoconstriction† β-Adrenergic: inotropic and chronotropic effects and vasodilation† Nonadrenergic: renal and splanchnic vasodilation |
|
DobutamineSome Trade Names |
250 mg/250 mL 5% D/W continuous IV infusions at 2.5–10 μg/kg/min |
β-Adrenergic: inotropic effects‡ |
