Zolpidem salt forms
US6242460A · kind A · utility
15Cited by
2References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 26, 1999 |
| Grant date | Jun 5, 2001 |
| Priority date | — |
| Expiry date | Nov 26, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P25/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Zolpidem salts having improved physical stability do not exhibit a melting endotherm corresponding to zolpidem free base when heated at 5.degree. C./minute from about 25.degree. C. to 250.degree. C. The salts are generally easy to reproduce, even on an industrial scale and are easier to handle due to the increased stability than the known zolpidem tartrate. The zolpidem salts are typically pharmaceutically acceptable salts and can be used in formulating pharmaceutical compositions and in pharmaceutical uses; e.g. as a hypnotic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.