Synergistic veterinary composition and/or fodder premix and process for preparing same

The invention relates to a synergistic veterinary composition and/or a fodder premix useful for preventing or curing bacterial, fungal and protozoic infection particularly occurring at poultry species. Furthermore the invention relates to a process for preparing same. The composition or premix contains 1 to 100 parts by mass of 2,4-diamino-5-(3,4,5-trimethoxybenzyl)pyrimidine and/or 1 to 100 parts by mass of 2,4-diamino-5-(3,4-dimethoxybenzyl)pyrimidine as well as 1 to 100 parts by mass of 2,6-dimethoxy-4-sulfanilamidopyrimidine or a pharmaceutically acceptable salt thereof and 1 to 100 parts by mass of 8-hydroxyquinoline or a pharmaceutically acceptable acid addition salt thereof optionally in admixture with carrier(s) and/or additive(s) commonly used in the pharmaceutical industry or for the preparation of premixes. PROCEDIMIENTO PARA PREPARAR UNA COMPOSICION SINERGICA Y/O UN PRECOMPUESTO PARA PIENSO. EL PROCEDIMIENTO CONSISTE EN QUE SE HACEN REACCIONAR DURANTE 5 A 50 MINUTOS, A LA PRESION ATMOSFERICA Y A TEMPERATURA DE 15 A 40GC, DE 1 A 100 PARTES EN MASA DE 2,4-DIAMINO-5-(3,4,5-TRIMETOXIBENCIL) PIRIMIDINA, O 1 A 100 PARTES EN MASA DE 2,4-DIAMINO-5-(3,4-DIMETOXIBENCIL) PIRIMIDINA, CON 1 A 100 PARTES EN MASA DE 2,6-DIMETOXI-4-SULFANILAMIDOPIRIDINA O UNA SAL DE LA MISMA Y 1 A 100 PARTES EN MASA DE 8-HIDROXIQUINOLEINA O UNA SAL ACIDA DE ADICION DE LA MISMA, A/ADIENDOSE OPCIONALMENTE PORTADOR(ES) Y/O ADITIVO(S) EN LA PREPARACION DE PRECOMPUESTOS.