Composition containing protease separate from glycosidase for removing nits in treating lice infestation
US5935572A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 10, 1997 |
| Grant date | Aug 10, 1999 |
| Priority date | — |
| Expiry date | Jan 10, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/127
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A composition containing a protease and glycosidase is provided for removing nits in the treatment of lice infestation. The protease and glycosidase are separated from each other to prevent the protease from hydrolyzing the glycosidase Separation is accomplished by encapsulating either the protease or glycosidase in a lipidic bilayer vesicle while leaving the other outside the vesicle. The protease and glycosidase destroy complex carbohydrate and protein in nit shells, nit embryos and substances secreted by adult lice. In a method of treatment, an infestation site such as hair is treated with a pediculoside and then with the composition containing a protease and glycosidase, and nits are removed such as by washing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.