Process for producing a pharmaceutical composition containing micro particles
US11426351B2 · kind B2 · utility
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3References
9Claims
0Family size
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Key dates
| Filing date | Dec 26, 2019 |
| Grant date | Aug 30, 2022 |
| Priority date | — |
| Expiry date | Dec 26, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K31/65
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A pharmaceutical composition having consistently a desirable release rate is prepared by controlling the finally mixing time based on the molecular weight measured in the intermediate product. The pharmaceutical composition includes micro particles containing a polyhydric alcohol, a salt, a water-soluble polymer and a pharmaceutically active ingredient. The micro particles are dispersed in a matrix of a hydrophobic ingredient and an amphipathic ingredient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.