» Oxytetracycline Hydrochloride and Polymyxin B Sulfate Ointment contains the equivalent of not less than 90.0 percent and not more than 120.0 percent of the labeled amount of oxytetracycline (C₂₂H₂₄N₂O₉), and not less than 90.0 percent and not more than 125.0 percent of the labeled amount of polymyxin B.