CA Patent

CA1297368C — Pulsed drug delivery

Assigned to Alza Corp · Expires 1992-03-17 · 34y expired

What this patent protects

ABSTRACT OF THE INVENTION A dosage form comprising (1) an immediately available dose of a beneficial drug followed by a timed delayed dose of drug, or (2) a timed delayed dose of drug.

USPTO Abstract

ABSTRACT OF THE INVENTION A dosage form comprising (1) an immediately available dose of a beneficial drug followed by a timed delayed dose of drug, or (2) a timed delayed dose of drug.

Drugs covered by this patent

methylphenidate-hydrochloride (METHYLPHENIDATE HYDROCHLORIDE)

Patent Metadata

Patent number: CA1297368C
Jurisdiction: CA
Classification: —
Expires: 1992-03-17
Drug substance claim: No
Drug product claim: No
Assignee: Alza Corp
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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