CA Patent

CA2634637A1 — Controlled release solid preparation

Assigned to Takeda Pharmaceutical Co Ltd · Expires 2007-07-05 · 19y expired

What this patent protects

Disclosed is a controlled release solid preparation which is excellent in stability of an active ingredient, can exert a pharmacological effect steadily and rapidly after administration and can retain the pharmacological effect for a prolonged period of time. The controlled relea…

USPTO Abstract

Disclosed is a controlled release solid preparation which is excellent in stability of an active ingredient, can exert a pharmacological effect steadily and rapidly after administration and can retain the pharmacological effect for a prolonged period of time. The controlled release solid preparation comprises a combination of a rapid release part and a controlled release part, wherein the rapid release part comprises an antacid (1), a compound unstable under acidic conditions (2) and a basic substance and the controlled release part comprises a coating film comprising a compound unstable under acidic conditions (3) and a basic substance and capable of being dissolved at a pH value equal to or higher than 6.5.

Drugs covered by this patent

Patent Metadata

Patent number
CA2634637A1
Jurisdiction
CA
Classification
—
Expires
2007-07-05
Drug substance claim
No
Drug product claim
No
Assignee
Takeda Pharmaceutical Co Ltd
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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