EP Patent

EP0647448A1 — Orally administrable opioid formulations having extended duration of effect

Assigned to Euro Celtique SA · Expires 1995-04-12 · 31y expired

What this patent protects

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…

USPTO 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.

Drugs covered by this patent

Patent Metadata

Patent number
EP0647448A1
Jurisdiction
EP
Classification
—
Expires
1995-04-12
Drug substance claim
No
Drug product claim
No
Assignee
Euro Celtique SA
Source
FDA Orange Book + USPTO grounding via Google Patents

Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.

Track this patent

Get a daily-checked alert when vulnerability score, expiry, classification, or assignee changes. Email, Slack, or Teams delivery. Pro: 50 watches, Free: 3.