» Betamethasone Sodium Phosphate and Betamethasone Acetate Injectable Suspension is a sterile preparation of Betamethasone Sodium Phosphate in solution and Betamethasone Acetate in suspension in Water for Injection. It contains an amount of betamethasone sodium phosphate (C₂₂H₂₈FNa₂O₈P) equivalent to not less than 90.0 percent and not more than 115.0 percent of the labeled amount of betamethasone (C₂₂H₂₉FO₅), and not less than 90.0 percent and not more than 115.0 percent of the labeled amount of betamethasone acetate (C₂₄H₃₁FO₆).