» Chloramphenicol and Hydrocortisone Acetate for Ophthalmic Suspension is a sterile, dry mixture of Chloramphenicol and Hydrocortisone Acetate with or without one or more suitable buffers, diluents, and preservatives. It contains not less than 90.0 percent and not more than 130.0 percent of the labeled amount of chloramphenicol (C₁₁H₁₂Cl₂N₂O₅), and not less than 90.0 percent and not more than 115.0 percent of the labeled amount of hydrocortisone acetate (C₂₃H₃₂O₆), when constituted as directed.