The invention provides a combination comprising 4-methyl-8-phenoxy-1-(2-phenylethyl)-2,3- dihydro-1H-pyrrolo[3,2-c]quinoiine or a pharmaceutically acceptable derivative thereof, mupirocin or a pharmaceuticaliy acceptable derivative thereof and neomycin or a pharmaceutically acceptable derivative thereof. This triple combination is particularly useful for the treatment and/or prevention of microbial infections.