Oral dosage forms

Details Oral dosage forms Oral dosage forms

2002-02-28

2009-08-11

Jones, D. L (Department: 1618)

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Tablets, lozenges, or pills

C424S400000, C424S464000, C424S465000

Reexamination Certificate

active

07572463

ABSTRACT:
A controlled-release oral dosage formulation of a salt-forming active ingredient, wherein the active ingredient is present as at least two different salts in a solid aggregation state, wherein the two different salts have different water solubility and release the active ingredient in-vitro at different release rates, provided that oral dosage formulations are excluded which comprise a resin carrying a sulfonate group and a resin carrying a carboxyl group and which contain an active ingredient in a form fixed to these resins.

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