Solid dispersion dosage form of amorphous xanthine derivative and enteric-coating polymer
US6254889A · kind A · utility
25Cited by
6References
4Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 26, 1997 |
| Grant date | Jul 3, 2001 |
| Priority date | — |
| Expiry date | Mar 26, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D473/04
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
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. ##STR1## (In the above formula, R.sup.1 and R.sup.2 are the same or different, and represent substituted or unsubstituted lower alkyl groups, and Q represents a hydrogen atom or a hydroxyl group.)
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.