EP2298416A2 — Sustained-release tramadol formulations with 24-hour clinical efficacy
Assigned to Labopharm Inc · Expires 2011-03-23 · 15y expired
What this patent protects
There is disclosed a once daily oral pharmaceutical compositon for controlled release of tramadol or a salt thereof, wherein the composition, when ingested orally, provides a clinical effect over 24 hours which is a least as good as the clinical effect over 24 hours of two doses …
USPTO Abstract
There is disclosed a once daily oral pharmaceutical compositon for controlled release of tramadol or a salt thereof, wherein the composition, when ingested orally, provides a clinical effect over 24 hours which is a least as good as the clinical effect over 24 hours of two doses of a twice daily oral pharmaceutical composition for controlled release of tramadol, taken 12 hours apart.
Drugs covered by this patent
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.
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