Sustained drug release device
US4308250A · kind A · utility
29Cited by
11References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 9, 1980 |
| Grant date | Dec 29, 1981 |
| Priority date | — |
| Expiry date | Dec 9, 2000 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M31/002
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A device for oral administration to a ruminant animal includes a veterinary medicament, such as an anthelmintic, uniformly dispersed throughout an erodable sheet comprising an ethylene-vinylacetate copolymer. The sheet is rolled up and stuck together with adhesive backed paper strips for administration, and unrolls in the rumen to take up a planar configuration which is retained in the rumen. The sheet may be placed within a plastics netting envelope to give more controlled erosion and release of medicament.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.