EP0227814A1 — Therapeutic formulations with bimodal release characteristics
Assigned to Pharmacia and Upjohn Co · Expires 1987-07-08 · 39y expired
What this patent protects
Carrier base material to be combined with a therapeutically active drug and formed in a solid dosage unit of predetermined shape for controlling the release of the drug during administration. More specifically, the present invention relates to a carrier base material formed by on…
USPTO Abstract
Carrier base material to be combined with a therapeutically active drug and formed in a solid dosage unit of predetermined shape for controlling the release of the drug during administration. More specifically, the present invention relates to a carrier base material formed by one or more bimodal hydroxypropylmethylcellulose (B-HPMC) having a physical and chemical structure which makes said material usable in sustained release therapeutic formulations having bimodal release characteristics.
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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