Microporous zirconium silicate for the treatment of hyperkalemia
US9913860B2 · kind B2 · utility
5Cited by
33References
40Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 20, 2015 |
| Grant date | Mar 13, 2018 |
| Priority date | — |
| Expiry date | Jan 13, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A50/30
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to novel microporous zirconium silicate compositions that are formulated to remove toxins, e.g. potassium ions, from the gastrointestinal tract at an elevated rate without causing undesirable side effects. The preferred formulations are designed avoid increase in pH of urine in patients and/or avoid potential entry of particles into the bloodstream of the patient. Also disclosed is a method for preparing high purity crystals of ZS-9 exhibiting an enhanced level of potassium exchange capacity. These compositions are particularly useful in the therapeutic treatment of hyperkalemia.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.