Memantine paroxetine cocrystal salt and its preparation method, pharmaceutical composition and application
US11839607B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 22, 2019 |
| Grant date | Dec 12, 2023 |
| Priority date | — |
| Expiry date | Nov 14, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2603/74
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A memantine paroxetine cocrystal salt and its preparation method, pharmaceutical composition and application thereof are provided. The cocrystal salt of the invention is memantine paroxetine sulfate hydrate. Its mechanism of action is 5-HT inhibitor and NMDA receptor antagonist. It is a multi-target drug. The preliminary pharmacokinetic experiments showed that the main pharmacokinetic parameters of cocrystal salt and memantine, such as T1/2, Tmax, Cmax and AUC(0-∞), were significantly different. The results also showed that cocrystal salt could improve drug absorption, blood drug concentration, bioavailability and curative effect. This provides a material basis for reducing dosage and adverse drug reactions. In addition to that the cocrystal salt of this invention can be used as a multi-target drug, it can also combine with other drugs of different action mechanisms to form compound preparations or be used in combination, so as to obtain unexpected clinical efficacy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.