The present invention relates to the solid molecular dispersions of fesoterodine fumaric acid hydrogen salt (fesoterodine hydrogen fumarate) and polymerization binder. The invention further relates to inertia core pearl or particles that coating has the solid molecular dispersion, and are related to the pharmaceutical preparation comprising these coated pearls or particle.本發明涉及非索羅定反丁烯二酸氫鹽（fesoterodine hydrogen fumarate）及聚合黏合劑的固體分子分散體。本發明還涉及包衣有所述固體分子分散體的惰性核心珠或粒子，及涉及包含這些經包衣的珠或粒子的藥物製劑。
