Sustained release caffeine formulation

摘要

The present invention relates to a composition for the controlled release of a stimulant of xanthine or a xanthine derivative, which comprises microparticles including a biodegradable matrix of at least one water-soluble material and the stimulant, said stimulant being in the form of solid particles which are substantially uniformly distributed throughout the matrix. It is also concerning a method for making this composition by dispersing the stimulant in the form of a plurality of solid particles into a biodegradable matrix. Such composition can advantageously be orally administrated for increasing the alertness of an individual.