SUSTAINED RELEASE DOSAGE FORMS CONTAINING A RETARDING AGENT CONSISTING OF XANTHAN GUM OR XANTHAN GUM PLUS SOLUBLE POLYMERS

摘要

Pharmaceutical formulations are disclosed, adapted for preparing solid oral dosage forms (tablets, capsules, lozenges, etc.) having a regular and sustained release after administration. Said formulations comprise one or more active substances and a retarding base or matrix consisting of a polysaccharide of natural origin, alone or mixed with one or more natural or synthetic polymers which may be used to modify the release pattern so as to obtain a therapeutically effective formulation.