Epinephrine Injection, USP is a sterile, nonpyrogenic solution administered parenterally by the intravenous or intracardiac (left ventricular chamber) routes, or via endotracheal tube into the bronchial tree.

Each milliliter (mL) of the 1:10,000 solution contains epinephrine 0.1 mg; sodium chloride 8.16 mg; sodium metabisulfite added 0.46 mg; citric acid, anhydrous 2 mg and sodium citrate, dihydrate 0.6 mg added as buffers. May contain additional citric acid and/or sodium citrate for pH adjustment. pH 3.3 (2.2 to 5.0). Epinephrine Injection, USP is oxygen sensitive.

The solution contains no bacteriostat or antimicrobial agent and is intended for use only as a single-dose injection. When smaller doses are required the unused portion should be discarded.

Epinephrine Injection, USP is a parenteral adrenergic (sympathomimetic) agent and cardiac stimulant.

The drug belongs to the group of endogenous compounds known as catecholamines.

Sodium Chloride, USP is chemically designated NaCl, a white crystalline powder freely soluble in water.

Epinephrine, USP is chemically designated 4-[1-hydroxy-2-(methylamino) ethyl]-1,2 benzenediol, a white, microcrystalline powder. With acids, it forms salts that are freely soluble in water.

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