Method for making a multi-stage drug delivery system
US5674530A · kind A · utility
29Cited by
4References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 6, 1995 |
| Grant date | Oct 7, 1997 |
| Priority date | — |
| Expiry date | Feb 6, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/4808
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A method of making a drug delivery system (10) includes the steps of filling a first water permeable capsule half with a drug and an osmotic agent and plugging an open-end (24) of the capsule (12). The method further includes the steps of disposing a water permeable film (30) over the capsule (12) and plug (28), filling a second capsule half (14) with a drug (18), and releasably mounting an open end (34) of the second capsule half (14) over the plugged end (24) of the first capsule half (12).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.