Long acting nicardipine hydrochloride formulation
US5198226A · kind A · utility
64Cited by
10References
10Claims
0Family size
Assignee
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Key dates
| Filing date | Nov 12, 1991 |
| Grant date | Mar 30, 1993 |
| Priority date | — |
| Expiry date | Nov 12, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K31/44
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A long acting sustained release pharmaceutical composition for dihydropyridine calcium channel blockers wherein the calcium channel blocker and a pH-dependent binder are intimately admixed in essentially spherically shaped non-rugose particles of up to 1.2 mm in diameter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.