Sustained release suspension containing dezocine analogue ester and preparation method therefor
US10744109B2 · kind B2 · utility
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12Claims
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Key dates
| Filing date | Aug 7, 2018 |
| Grant date | Aug 18, 2020 |
| Priority date | — |
| Expiry date | Aug 7, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K47/44
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Disclosed are a sustained release suspension containing dezocine analogue ester and a preparation method therefor. According to the present invention, an injectable oily auxiliary material which may pharmaceutically serve as a sustained-release depot and an excipient are selected, and micronization technology is used jointly with high pressure homogenization technology and an anti-solvent technique to prepare an injectable long-acting suspension. The main components of the suspension are a compound represented by formula (I), the injectable oil, and the like.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.