SOLID DISPERSION AND SOLID DISPERSION DOSAGE FORM OF XANTHINE DERIVATIVE

摘要

The present invention relates to a solid dispersion and a solid dispersion dosage form which comprise a xanthine derivative represented by the following formula (I) or a pharmacologically allowable salt thereof and a polymer. (see formula I) (In the above formula, R1 and R2 are the same or different, and represent substituted or unsubstituted lower alkyl groups, and Q represents a hydrogen atom or a hydroxyl group.)