Transdermal drug delivery device
US4917895A · kind A · utility
120Cited by
14References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 14, 1988 |
| Grant date | Apr 17, 1990 |
| Priority date | — |
| Expiry date | Jul 14, 2008 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/7084
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A diffusional drug delivery device is described which can provide shelf life stability of the system components, elimination of the initial burst of drug and hence irritation, delayed onset of therapeutic effect and delivery of a therapeutic agent at an optimum rate. A metal layer and an activating means are inert when dry. Moisture activates the system whereby the activating means provides release of an eroding agent which erodes the metal layer through which the therapeutic agent diffuses and is subsequently delivered.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.