External preparation comprising calcium silicate
US5204119A · kind A · utility
35Cited by
5References
7Claims
0Family size
Inventors
Key dates
| Filing date | Aug 20, 1991 |
| Grant date | Apr 20, 1993 |
| Priority date | — |
| Expiry date | Aug 20, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K31/405
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
An external preparation is characterized by comprising calcium silicate. The calcium silicate controls the release rate and percutaneous absorbability of a drug.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.