The subject of the present invention is to stabilize the composition with cyclodextrin inclusion in the pharmaceutical composition. The present invention provides a purpose of &bgr-cyclodextrin, which is characterized in : in order to stabilize the composition with cyclodextrin inclusion in the pharmaceutical composition, &bgr-cyclodextrin is formulated into the pharmaceutical composition. By further formulating the dextran, the present invention may provide a tablet with higher formability and thus enhanced thermal stability.本發明之課題在於使經環糊精包合之化合物於醫藥組成物中安定化。本發明提供一種β-環糊精之用途,其特徵在於:為了使經環糊精包合之化合物於醫藥組成物中安定化,將β-環糊精進而調配至醫藥組成物中。藉由進一步調配葡聚糖類,可提供一種成形性較高,進而對於熱之安定性亦提高的錠劑。