Drug delivery system for zero order, zero order-biphasic, ascending or descending drug delivery
US7195778B2 · kind B2 · utility
146Cited by
11References
44Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 10, 2002 |
| Grant date | Mar 27, 2007 |
| Priority date | — |
| Expiry date | Jan 4, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P25/16
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention is directed to a drug delivery device for controlled release of a drug, comprising a core that has a cylindrical plug embedded therein; and a coating that at least partially surrounds the core. The core is comprised of a drug and excipients. The coating surrounding the core is essentially impermeable to the drug. The cylindrical plug, which is embedded in the core, may be hollow or solid. The drug delivery device enables zero-order drug release profiles as well as more complicated release profiles to be obtained. The invention is also directed to a method of making the drug delivery device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.