Pregn-4-ene-3,20-dione, 21-(acetyloxy)-9-fluoro-11,17-dihydroxy-, (11beta)-, mixt. with alkylbenzyldimethylammonium chlorides, 2-(diethylamino)-N-(2,6-dimethylphenyl)acetamide, neomycin sulfate (salt) and polymyxin B sulfate (salt)