Synergistic combinations for treatment of infections of domestic anima

New medicaments for the treatment of infections of the respiratory organs, gastrointestinal tract and genito-urinary tract of domestic animals contains, optionally together with one or more usual inert, non-toxic, solid and/or liquid pharmaceutical carriers, extending agents and/or adjuvants, (A) oxytetracycline and (B) one or more antimicrobial organic acids and/or water-soluble derivatives thereof, the ratio of component A to component B being 0.5:10 to 10:0.5 V/W. The two components may be partially separated in one and the same package unit or dosage unit. LA PRESENTE INVENTION EST RELATIVE A DE NOUVELLES COMPOSITIONS PHARMACEUTIQUES A ACTIVITE ANTIMICROBIENNE.CES COMPOSITIONS COMPRENNANT DE L'OXYTETRACYCLINE ET UN ACIDE ORGANIQUE AYANT UNE ACTIVITE ANTIMICROBIENNE OU UN DERIVE DE CELUI-CI SOLUBLE DANS L'EAU ET ACCEPTABLE DU POINT DE VUE PHARMACEUTIQUE, SELON UN RAPPORT PONDERAL DE 0,5:10 A 10:0,5, EVENTUELLEMENT MELANGES A DES SUPPORTS SOLIDES OU LIQUIDES ACCEPTABLES DU POINT DE VUE PHARMACEUTIQUE.APPLICATION EN MEDECINE VETERINAIRE.