EP0953350A1 — Extended release formulation of diltiazem hydrochloride
Assigned to DOV Pharmaceutical Inc · Expires 1999-11-03 · 27y expired
What this patent protects
An extended release formulation of diltiazem which is suitable for once-daily oral administration comprises a quantity of a quick release preparation of diltiazem or a pharmaceutically active salt thereof, mixed with a quantity of a slow release (or delayed release) preparation o…
USPTO Abstract
An extended release formulation of diltiazem which is suitable for once-daily oral administration comprises a quantity of a quick release preparation of diltiazem or a pharmaceutically active salt thereof, mixed with a quantity of a slow release (or delayed release) preparation of diltiazem or a pharmaceutically active salt thereof. The preferred embodiment is a capsule containing the formulation, which, based upon the total quantity of drug in the formulation rather than total weight of the formulation, comprises up to approximately 25 per cent by weight of the quick release preparation of diltiazem, and up to 75 per cent by weight of the slow (or delayed) release preparation of diltiazem.
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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