Multilamellar drug delivery systems
US5447729A · kind A · utility
65Cited by
3References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 7, 1994 |
| Grant date | Sep 5, 1995 |
| Priority date | — |
| Expiry date | Apr 7, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/5089
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A pharmaceutical preparation including a pharmaceutical agent incorporated into particles comprising (i) a core formed from a hydrophilic material, a hydrophobic material or a hydrophobic emulsion or dispersion and (ii) an alternating sequence of hydrophilic/hydrophobic layers thereon such that there is a hydrophilic/hydrophobic interface between the core and each succeeding layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.