Compositions comprising methylphenidate complexed with ion-exchange resin particles
US9072680B2 · kind B2 · utility
15Cited by
21References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2013 |
| Grant date | Jul 7, 2015 |
| Priority date | — |
| Expiry date | Mar 15, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12N9/2402
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Pharmaceutical compositions of methylphenidate complexed with ion-exchange resin particles to form drug-resin particles are provided. The compositions have a first plurality of drug-resin particles that are uncoated and a second plurality of drug-resin particles that are coated with a delayed release coating. Preferably, the second plurality of drug-resin particles are coated with a triggered-release coating triggered by a pH change and a diffusion barrier coating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.