Prolonged action drug formulation
US4731359A · kind A · utility
3Cited by
0References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 6, 1984 |
| Grant date | Mar 15, 1988 |
| Priority date | — |
| Expiry date | Feb 6, 2004 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K31/43
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The time during which a drug is pharmacologically active is prolonged by coating the drug with at least one chemical derivative of the drug having minor relative pharmacological activity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.