Stable topical anesthetic compositions
US4052513A · kind A · utility
81Cited by
9References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 2, 1976 |
| Grant date | Oct 4, 1977 |
| Priority date | — |
| Expiry date | Apr 2, 1996 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q19/004
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A cosmetically elegant and stable oil in water emulsion for use as a topical anesthetic containing 0.5-15% benzocaine solubilized in water with a dialkyl ester of an alkanedioic acid having the formula ROOC--C.sub.n H.sub.2n --C00R' where R and R' are alkyl groups of from 1 to 4 carbon atoms and n is an integer from 1 to 8.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.