EP0159852A2 — Directly compressible pharmaceutical compositions

USPTO Abstract

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.