Pharmaceutical composition for treating parkinson's disease and preparation method thereof
US9750702B2 · kind B2 · utility
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22Claims
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Key dates
| Filing date | Dec 25, 2009 |
| Grant date | Sep 5, 2017 |
| Priority date | — |
| Expiry date | Dec 25, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/5084
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A pharmaceutical composition used to treat Parkinson's disease contains levodopa, carbidopa and entacapone or pharmaceutically acceptable salt thereof, and at least one kind of pharmaceutically acceptable excipients. Entacapone is not mixed with levodopa or carbidopa in the pharmaceutical composition. The preparation method of the pharmaceutical composition includes making the first particles with levodopa and carbidopa, making the second particles with entacapone, and then pressing the two kinds of particles into tablets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.