84777-75-3 Nystaform-HC cream Pregn-4-ene-3,20-dione, 11,17,21-trihydroxy-, (11beta)-, mixt. with N,N''-bis(4-chlorophenyl)-3,12-diimino-2,4,11,13-tetraazatetradecanediimidamide dihydrochloride and nystatin