GB2159715A — Pharmaceutical composition in sustained release unit dose form and process for its preparation
Assigned to Sterwin AG · Expires 1985-12-11 · 40y expired
What this patent protects
A pharmaceutical composition of a medicament, such as a 5-(pyridinyl)-2(1H) pyridone, in sustained release unit dosage form for oral administration is in the form of beads within a capsule of gelatin or the like. Each bead comprises an inert particulate core having adhered theret…
USPTO Abstract
A pharmaceutical composition of a medicament, such as a 5-(pyridinyl)-2(1H) pyridone, in sustained release unit dosage form for oral administration is in the form of beads within a capsule of gelatin or the like. Each bead comprises an inert particulate core having adhered thereto a coating of particles of the medicament. This coating is in turn surrounded by a sustaining coating of a mixture of three different polymers with different solubility profiles to allow a sustained release of the medicament both in the low pH environment of the stomach and at the higher pH values prevailing in the intestine. <IMAGE>
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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