A pharmaceutical composition of 3-(1-{3-[5-(1-Methyl-piperidin-4-ylmethoxy)- pyrimidin-2-yl]-benzyl}-6-oxo-1,6-dihydro-pyridazin-3-yl)-benzo nitrile or a pharmaceutically acceptable salt and/or solvate thereof in combination with Gefitinib.Una composición farmacéutica de 3- (1-{3- [5- (1-metil-piperidin-4-ilmetoxi) -pirimidin-2-il] -bencil} -6-oxo-1,6-dihidro-piridazin-3-il)-benzonitrilo o una de sus sales y/o solvatos farmacéuticamente aceptables en combinación con Gefitinib.
