Patent · US Expired

Orally administrable opioid formulations having extended duration of effect

US6572885B2 · kind B2 · utility

220Cited by
55References
22Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 26, 2001
Grant dateJun 3, 2003
Priority date—
Expiry dateJun 26, 2021

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.