An oral pharmaceutical composition, which is a core tablet composition, comprising: (i) N- {3-Chloro-4 - [(3-fluorobenzyl) oxy] phenyl} -6- [5 - ({[2- (methanesulfonyl) ethyl] amino} methyl) -2-furyl] -4-quinazolinamine ditosylate monohydrate present in a range of 30 to 60 percent by weight; (ii) povidone present in a range of 4 to 9 percent by weight; (iii) sodium starch glycolate present in a range of 2 to 8 percent by weight; (iv) microcrystalline cellulose present in a range of 35 to 50 percent by weight; and (v) magnesium stearate present in a range of 0.6 to 1.3 percent by weight.Una composición farmacéutica oral, que es una composición de comprimido de núcleo, que comprende: (i) N-{3-Cloro-4-[(3-fluorobencil)oxi]fenil}-6-[5-({[2-(metanosulfonil)etil] amino}metil)-2-furil]-4-quinazolinamina ditosilato monohidrato presente en un rango de 30 a 60 por ciento en peso; (ii) povidona presente en un rango de 4 a 9 por ciento en peso; (iii) almidón glicolato de sodio presente en un rango de 2 a 8 por ciento en peso; (iv) celulosa microcristalina presente en un rango de 35 a 50 por ciento en peso; y (v) estearato de magnesio presente en un rango de 0.6 a 1.3 por ciento en peso.