Effervescent composition and its production
US5824339A · kind A · utility
55Cited by
14References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 5, 1996 |
| Grant date | Oct 20, 1998 |
| Priority date | — |
| Expiry date | Sep 5, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/0007
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
An effervescent composition comprising a core-shell powder consisting of a fine granular core spray-coated with a liquid mixture containing a water-soluble polymer such as hydroxypropylcellulose or hydroxypropylmethylcellulose, and at least one physiologically active substance, especially an acid-sensitive drugs, and enteric coating film, an effervescing component and an auxiliary effervescing agent which provides for controlled release of the physiologically active substance and in useful for preparing uniform solution or suspension having a refreshing sensation on ingestion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.