Solid dosage form with a film containing an active substance, as well as its method of production
US8673344B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 12, 2007 |
| Grant date | Mar 18, 2014 |
| Priority date | — |
| Expiry date | Jul 15, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1043
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to a solid dosage form with at least one film, which contains an active substance at least in sections, and the concentration of the active substance in the film or in the films has a gradient in a direction normal to the thickness of film. The invention further relates to a method of producing a solid dosage form, in which at least one film is produced, containing an active substance at least in sections, with the concentration of the active substance having a gradient in the longitudinal direction of the film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.