Zaleplon gastroretentive drug delivery system
US9693981B2 · kind B2 · utility
2Cited by
4References
41Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 19, 2009 |
| Grant date | Jul 4, 2017 |
| Priority date | — |
| Expiry date | Mar 31, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P29/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A biodegradable, multi-layered controlled release gastroretentive dosage form which is optionally divided into a first dosage of zaleplon for controlled release and a second dosage of zaleplon for immediate release in the stomach and gastrointestinal tract of a patient, folded into a capsule which disintegrates upon contact with gastric juice and the gastroretentive dosage form unfolds rapidly upon contact with gastric juice. The biodegradable, multi-layered gastroretentive dosage forms of the invention provide efficient sleep induction with good sleep maintenance and minimal next day residual effects.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.