Slow release compositions
US5415878A · kind A · utility
8Cited by
13References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 21, 1993 |
| Grant date | May 16, 1995 |
| Priority date | — |
| Expiry date | Apr 21, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01G23/005
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Lithium titanate is made by heating to a temperature of at least 715 C., powder form lithium carbonate and titanium dioxide while mixing, for instance in a rotary kiln. The product is formulated into extended release oral pharmaceutical compositions. Lithium ions are released by zero order rate characteristics from the compositions. The composition can have increased density to extend retention in the stomach. The compositions are used for treatment of manic depressive illness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.