» Penicillin G Procaine, Dihydrostreptomycin Sulfate, Chlorpheniramine Maleate, and Dexamethasone Injectable Suspension is a sterile suspension of Penicillin G Procaine and Dexamethasone in a solution of Sterile Dihydrostreptomycin Sulfate and Chlorpheniramine Maleate in Water for Injection. It contains one or more suitable buffers, preservatives, and dispersing or suspending agents. It may contain Procaine Hydrochloride in a concentration not exceeding 2.0 percent, and it may contain one or more suitable stabilizers. It contains not less than 90.0 percent and not more than 115.0 percent of the labeled amounts of Penicillin G Units and of dihydrostreptomycin (C₂₁H₄₁N₇O₁₂), and not less than 90.0 percent and not more than 110.0 percent of the labeled amounts of chlorpheniramine maleate (C₁₆H₁₉ClN₂·C₄H₄O₄) and of dexamethasone (C₂₂H₂₉FO₅).