Guaifenesin tannate
US6677381B1 · kind B1 · utility
1Cited by
6References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 14, 2001 |
| Grant date | Jan 13, 2004 |
| Priority date | — |
| Expiry date | Dec 14, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P21/02
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention pertains to a novel composition comprising guaifenesin tannate and to a method for preparing guaifenesin tannate by reacting guaifenesin with tannic acid at a temperature above the melting point of guaifenesin. The guaifenesin tannate has extended release properties and is useful in pharmaceutical compositions as an expectorant in warm-blooded animals or as a muscle relaxant in non-human animals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.