Controlled release liquid active agent formulation dosage forms
US6342249B1 · kind B1 · utility
101Cited by
106References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 22, 1999 |
| Grant date | Jan 29, 2002 |
| Priority date | — |
| Expiry date | Dec 22, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/1075
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Controlled release of liquid, active agent formulations is provided by dispersing porous particles containing the liquid active agent formulation in osmotic, push-layer dosage forms. The dosage forms may provide for continuous or pulsatile delivery of active agents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.