Granule and preparation method thereof
US8951568B2 · kind B2 · utility
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1References
3Claims
0Family size
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Key dates
| Filing date | Jun 22, 2007 |
| Grant date | Feb 10, 2015 |
| Priority date | — |
| Expiry date | Aug 23, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P35/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A pharmaceutical granule whose shape is spherical or sphere-like shape with a bulk density of 0.6-1.3 g/ml and a dissolution time of 0.5-5 minutes, which is prepared as follows: mother granules are filled into a fluidized-bed as bed charge; active pharmaceutical ingredients are prepared into a suspension or solution whose viscosity is adjusted to 6.0-9.8 Mpa·S with viscosity adjusting agent; then it is sprayed onto surface of said mother granule to obtain final granule.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.