Method to make effervescent calcium tablets and calcium tablets produced thereby
US4650669A · kind A · utility
56Cited by
22References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 30, 1985 |
| Grant date | Mar 17, 1987 |
| Priority date | — |
| Expiry date | Jul 30, 2005 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/0007
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Described is a directly compressible formulation comprising calcium carbonate, citric acid, and a compression vehicle. In the preferred embodiment, the compression vehicle comprises a maltodextrin and lactose. The formulation can be compressed into an effervescent tablet system, which when placed in water effervesces in a relatively rapid dissolution releasing CO.sub.2 and resulting in a solution of monocalcium citrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.