Preparations for oral administration
US7501409B2 · kind B2 · utility
6Cited by
14References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 6, 2001 |
| Grant date | Mar 10, 2009 |
| Priority date | — |
| Expiry date | May 5, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/2077
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention provides a preparation for oral administration containing a medicinal substance having cGMP-specific phosphodiesterase inhibitory activity and showing decrease of solubility in the neutral and alkaline regions, wherein an acidic substance is compounded promote the dissolution of the medicinal substance in digestive tract and thus the efficacy can be expressed at the early stage after administration, and which preparation is useful in treatment of erectile dysfunction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.