Sustained release ibuprofen formulation.

摘要

The present invention provides a sustained release alpha -4-(2-methylpropyl)benzene acetic acid (Ibuprofen) formulation comprising sufficient granules to provide a predetermined dose or number of doses of Ibuprofen, each granule having a diameter between 0.5 and 2.0 mm and comprising: a) a core containing l00 parts of Ibuprofen and from l0 to 70 parts of a microcrystalline cellulose; and b) a coating covering substantially the whole surface of the core and comprising l00 parts of a water insoluble but water swellable acrylic polymer and 20 to 70 parts of a water-soluble hydroxylated cellulose derivative, the weight of the coating being from 5 to 20% of the weight of the core. i