Anesthetic lozenges
US4139627A · kind A · utility
63Cited by
2References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 7, 1977 |
| Grant date | Feb 13, 1979 |
| Priority date | — |
| Expiry date | Nov 7, 1997 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/0056
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Anesthetic lozenges are prepared by combining an acid addition salt of 3-piperidino-p-alkoxypropiophenoneswith a molten hard candy base with either the prior or simultaneous addition of a stabilizing amount of a pharmaceutically acceptable acid such as citric acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.