Plant extracts and alkaloids having antitussive activity
US6992078B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 24, 2002 |
| Grant date | Jan 31, 2006 |
| Priority date | — |
| Expiry date | Mar 30, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P11/14
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention provides plant extracts, isolated alkaloids, synthetic alkaloids and compositions having antitussive activity. In some preferred embodiments, the plant extracts and the isolated alkaloids are from a plant of a genus in the family Stemonaceae. In other preferred embodiments, the plant extracts and the isolated alkaloids are from a plant of the genus Stemona, Croomia, or Stichoneuron. In especially preferred embodiments, the plant extracts and the isolated alkaloids are from the plant Stemona tuberosa. The present invention further provides methods for isolating such plant extracts and alkaloids. In addition, the present invention provides methods for reducing or suppressing coughing by administering plant extracts, alkaloids and compositions having antitussive activity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.