Disclosed herein is a oral extended release dosage form comprising a plurality
of granules of an effective amount of a pharmaceutically active compound, at least
one amino acid, and an intragranular polymer in which the granule is dispersed
within a hydrophilic extragranular polymer matrix which is more rapidly hydrating
than the intragranular polymer. The amino acid is selected for hydropathy characteristics
depending on solubility characteristics of the active compound.