Levophed Norepinephrine Bitartrate Injection 1 mg/mL Single-dose Vial 4 mL, 10/Box - PfizerLevophed, also known by its generic name Norepinephrine Bitartrate, is a sterile, non pyrogenic solution intended for intravenous infusion. This medication comes in a single dose vial containing 1 mg mL of Norepinephrine Bitartrate, distributed in a 4 mL solution, professionally packaged by Pfizer Injectables. Active Ingredient: Norepinephrine Bitartrate: 1 mg mL Dosage Form: Injection, for intravenous use Concentration: 1 mg mL Volume: 4 mL per vial