PHARMACEUTICAL COMPOSITION IMPROVED IN PERORAL ABSORBABILITY

摘要

A pharmaceutical composition improved in peroral absorbability, which comprises a drug, aminoalkyl methacrylate copolymer E, and an acid substance and in which the three components stand adjacent to each another and at least the copolymer and the acid substance are uniformly dispersed; a method for improving peroral absorbability by using the composition; and a peroral absorption improver for enhancing the penetration of drug into the gastrointestinal mucosa and/or the mucous blanket present on the surface thereof, which contains aminoalkyl methacrylate copolymer E as the active ingredient.