CA Patent

CA1261260A — Directly compressible codeine salt compositions

Assigned to Mallinckrodt Inc · Expires 1989-09-26 · 37y expired

What this patent protects

ABSTRACT OF THE DISCLOSURE A compressible pharmaceutical composition is disclosed comprising an interactive ingredient such as codeine, a compound such as polyvinylpyrrolidone which acts as a binder and a filler such as lactose. The composition is granulated and can thereaft…

USPTO Abstract

ABSTRACT OF THE DISCLOSURE A compressible pharmaceutical composition is disclosed comprising an interactive ingredient such as codeine, a compound such as polyvinylpyrrolidone which acts as a binder and a filler such as lactose. The composition is granulated and can thereafter be dry blended with other active ingredients such as acetaminophen, Aspirin, ibuprofen, sodium naproxen or the like. The mixture may then be tableted in the usual manner to produce a tablet having physical properties comparable to tablets in which all the active ingredients are wet granulated together, yet avoiding the intimate contact between the ingredients which can result in undesirable interaction and adversely affect the stability of the active ingredients. *Trade Mark

Drugs covered by this patent

Patent Metadata

Patent number
CA1261260A
Jurisdiction
CA
Classification
Expires
1989-09-26
Drug substance claim
No
Drug product claim
No
Assignee
Mallinckrodt Inc
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.

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