» Tetracycline Hydrochloride for Injection is sterile Tetracycline Hydrochloride or a sterile, dry mixture of sterile Tetracycline Hydrochloride, one form of which contains Magnesium Chloride or magnesium ascorbate and one or more suitable buffers, and may contain one or more suitable preservatives, solubilizers, stabilizers, and anesthetic agents, and the other form of which contains one or more suitable stabilizing agents. It contains not less than 90.0 percent and not more than 115.0 percent of the labeled amount of C₂₂H₂₄N₂O₈·HCl.