Agent for preventing and treating opacity of lens
US5118679A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Jul 19, 1990 |
| Grant date | Jun 2, 1992 |
| Priority date | — |
| Expiry date | Jul 19, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K31/535
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention is to provide a highly effective agent for preventing and treating opacity of lens, containing the organic germanium compound represented by the fornula (1); ##STR1## (wherein R1 to R3 represent hydrogen atoms, lower alkyl groups each of which may be the same or different and selected from the group consisting of methyl group, ethyl group, etc., or phenyl groups substituted or unsubstituted; X represents a hydroxyl group, an O-lower alkyl group, an amino group or O.sup.- Y.sup.+ {Y represents a metal such as sodium, potassium, etc., or a compound having a basic group such as lysozyme and basic amino acid, etc.})or (2) a combination of the organic germanium compound and aminoguanidien, or (3) a combination of the organic germanium compound specifically defined above and the specific phenoxazine derivative.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.