Orally administrable opioid formulations having extended duration of effect
US5968551A · kind A · utility
434Cited by
52References
52Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 27, 1995 |
| Grant date | Oct 19, 1999 |
| Priority date | — |
| Expiry date | Jul 27, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/5047
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Sustained release oral solid dosage forms of opioid analgesics are provided as multiparticulate systems which are bioavailable and which provide effective blood levels of the opioid analgesic for at least about 24 hours. A unit dose of the opioid analgesic contains a plurality of substrates including the opioid analgesic in sustained release form. The substrates have a diameter from about 0.1 mm to about 3 mm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.