Tablets containing anion exchange resin
US6022533A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 30, 1998 |
| Grant date | Feb 8, 2000 |
| Priority date | — |
| Expiry date | Jan 30, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P3/06
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to a pharmaceutical composition comprising anion exchange resin, silicon dioxide, crystalline cellulose, and pharmaceutically acceptable carriers and more particularly to tablets containing anion exchange resin prepared by mixing anion exchange resin, silicon dioxide and crystalline cellulose without adding water and tabletting the mixture. More preferably, the present invention relates to said pharmaceutical composition or tablets wherein the anion exchange resin is non-crosslinked anion exchange resin represented by the formula (I): ##STR1## wherein R.sub.1 is an aralkyl group having from 7 to 10 carbon atoms or An alkyl group having from 1-20 carbon atoms; R.sub.2 and R.sub.3 are each independently the same or different and represent a lower alkyl group having from 1-4 carbon atoms; R.sub.4 is a hydrogen atom or a lower alkyl group having 1-4 carbon atoms; X is a physiologically acceptable counter ion; n is an integer of from 1 to 3; and p is an average degree of polymerization of from 10 to 10,000.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.