Composition comprising a tramadol material and any of codeine, oxycodone or hydrocodone and their use
US5468744A · kind A · utility
18Cited by
1References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 30, 1994 |
| Grant date | Nov 21, 1995 |
| Priority date | — |
| Expiry date | Jun 30, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P25/04
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
This invention relates to compositions comprising a tramadol material selected from the group consisting of tramadol, its stereoisomers and its pharmaceutically acceptable salts and either codeine or oxycodone, and their use in treating pain. When the components, i.e., tramadol materials and either of codeine or oxycodone, of the composition are within certain ratios of pharmacological effects of the compositions are superaddditive (synergistic).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.