title: Use of chitosan for sustained-release preparations of water-soluble drugs.
mesh_terms: D002626:Chemistry, Pharmaceutical; D002686:Chitin / Q000031:analogs & derivatives*; D048271:Chitosan; D003692:Delayed-Action Preparations; D005079:Excipients; D012995:Solubility
chemical_list: D003692:Delayed-Action Preparations; D005079:Excipients; D002686:Chitin; D048271:Chitosan