Xanthines in pharmaceutical preparations and for stabilization of vitamins

摘要: The invention relates to a process for the production of pharmaceutical preparations exhibiting delayed release an active substance which comprises intimately mixing more slowly absorbable therapeutically-active with one is rapidly absorbable, these substances being present in non-solid state other homogeneously incorporated, solidifying mixture obtained and forming it into solid preparation. also stabilization vitamins containing certain substituted xanthines are suitable afore-mentioned by incorporating component state, comprising combination vitamin stabilized said xanthines.