Peroral preparation of acid-unstable compound
US5035899A · kind A · utility
31Cited by
2References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 4, 1989 |
| Grant date | Jul 30, 1991 |
| Priority date | — |
| Expiry date | Apr 4, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P1/04
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A peroral preparation of an acid-unstable compound comprises (1) a core containing the acid-unstable compound, (2) a first layer, coated on the core, comprising a hardly water-soluble, film-forming material and fine particles of a hardly water-soluble substance, suspended in the material, and (3) a second layer, coated on the first layer, of enteric film. The acid-unstable compound is a benzimidazole compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.