Potentiated tulathromycin

Abstract

The invention relates to enhanced tulathromycin for use in the treatment, metaphylaxis or prevention of a microbial infection, characterized in that a compound of formula (I) is used in combination with tulathromycin at a weight ratio compound of formula (I):microbial agent of 8:1 to 1:10, and in that the microbial infection is induced in particular by a strain A pathogen in which the concentration of compound (I) satisfies the following equation: [C]<[MIC]/x, where [C] is the concentration according to the invention of compound (I) to be used in strain A, [MIC] is the minimum inhibitory concentration measured for compound (I) alone in strain A, and x is at least 100, advantageously at least 1000, more advantageously between 2000 and 10,000, or even greater than 50,000.

Dependencies are inferred from the claim text.