title: Preparation of a prolonged release tablet of aspirin with chitosan.
mesh_terms: D001241:Aspirin / Q000008:administration & dosage*; D002626:Chemistry, Pharmaceutical; D002686:Chitin / Q000031:analogs & derivatives; D048271:Chitosan; D003692:Delayed-Action Preparations; D004355:Drug Stability
chemical_list: D003692:Delayed-Action Preparations; D002686:Chitin; D048271:Chitosan; D001241:Aspirin