EP2826469A1 — Encased tamper resistant controlled release dosage forms
Assigned to Purdue Pharma LP · Expires 2015-01-21 · 11y expired
What this patent protects
In certain embodiments, the present invention is directed to a solid controlled release dosage form comprising: a therapeutically effective amount of hydrocodone or a pharmaceutically acceptable salt thereof dispersed in a controlled release excipient; wherein the inner 50% of th…
USPTO Abstract
In certain embodiments, the present invention is directed to a solid controlled release dosage form comprising: a therapeutically effective amount of hydrocodone or a pharmaceutically acceptable salt thereof dispersed in a controlled release excipient; wherein the inner 50% of the dosage form contains at least 80% of the hydrocodone or salt thereof; wherein the amount of hydrocodone or salt thereof released from the dosage form is proportional within 20% to elapsed time from 8 to 24 hours, as measured by an in-vitro dissolution in a USP Apparatus 1 (basket) at 100 rpm in 900 ml simulated gastric fluid without enzymes (SGF) at 37°C.
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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