Phenylephrine

CV & Vasoactive

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Calculated Induction Dose
--mg

Mechanism of Action

Pure alpha-1 agonist. Raises systemic vascular resistance and blood pressure, frequently causing reflex bradycardia.

Dosage Guidelines

TypeRouteRate / Dose
Dosage/GuidelineSystemicBolus: 50–100 mcg IV.

Clinical Pearls

1

Causes peripheral vasoconstriction leading to a rise in systemic vascular resistance and blood pressure. Often causes reflex bradycardia.

Population Considerations