Method for improving stability of low-concentration atropine ophthalmic preparation
US12303500B2 · kind B2 · utility
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Key dates
| Filing date | Sep 10, 2019 |
| Grant date | May 20, 2025 |
| Priority date | — |
| Expiry date | Mar 24, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D451/10
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The application provides a method for improving the stability of a low-concentration atropine ophthalmic preparation, characterized by controlling the content of the total impurity ≤0.25% and/or a single impurity content of ≤0.05%, as well as a method for preparing the ophthalmic preparation, an atropine ophthalmic preparation prepared therefrom and use thereof in the manufacture of a medicament for preventing and/or treating vision defects.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.