Polymeric diffusion matrix containing a vasodilator
US4291015A · kind A · utility
58Cited by
13References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 26, 1980 |
| Grant date | Sep 22, 1981 |
| Priority date | — |
| Expiry date | Jun 26, 2000 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K31/565
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A polymeric diffusion matrix containing a vasodilator is provided comprising from about 2 to about 60% of a polar plasticizer, e.g., glycerol, from about 2 to about 15% of a matrix component, e.g., polyvinylalcohol, from about 2 to about 10% of a water-soluble polymer with hydration sites, e.g., polyvinylpyrrolidone, which in combination with the remaining ingredients yields a matrix capable of sustained release of a vasodilator drug dispersed therein, and the balance water, the percentages being by weight.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.