It is an object of the present invention to provide an orally administered pharmaceutical composition capable of completely masking the flavor, odor and the like of a drug contained in a drug-containing layer, and to achieve this object, the outer edge of a first water-swellable gel-forming layer 12a and the outer edge of a second water-swellable gel-forming layer 12 are bonded together so as to enclose a drug-containing layer 11 inside an orally administered pharmaceutical composition 1a in the orally administered pharmaceutical composition 1a comprising the first water-swellable gel-forming layer 12a and the second water-swellable gel-forming layer 12 in the outermost layer.
