Norepinephrine (NE) is a potent vasopressor characterized by both α adrenergic agonist activity in addition to a weak β adrenergic agonist activity; thus, NE is considered a vasopressor with minimal cardiac depressant effect; these pharmacological properties would make NE an attractive alternative to phenylephrine and ephedrine (the most commonly used vasopressors in obstetric anesthesia).