Sildenafil-free base-containing film preparation and method for producing same
US9907759B2 · kind B2 · utility
1Cited by
2References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 13, 2012 |
| Grant date | Mar 6, 2018 |
| Priority date | — |
| Expiry date | Mar 5, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P15/10
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention provides a method for preparing a film comprising a high amount of a sildenafil free base uniformly dispersed therein and having a suitable thickness and size, as well as flexibility providing good handling stability and being not prone to breaking. The present invention also provides a sildenafil free base-containing film prepared from the method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.