title: [General Concept of Drug Delivery System].
abstract: Drug delivery system (DDS) is a pharmaceutical technique for enhancing the efficacy as well as reducing the side-effect of drugs. In the case of practical DDS, much attention has been paid to the controlled-release of drugs from dosage forms so as to maintain their blood concentrations in the therapeutic range. Improving the permeability of drugs across the mucosal and skin membranes is also a critical issue to apply the transmucosal and transdermal DDS to a wide variety of drugs. At this moment the possibility of drug targeting to the site of lesion has been actively considered. Novel DDS bearing superior functionality can be produced by the further efforts understanding nature of a drug molecule and pathogenesis of disease, together with progress of pharmaceutical technology.
authors.forename: Kozo
authors.initials: K
authors.lastname: Takayama
mesh_terms: D003692:Delayed-Action Preparations; D016503:Drug Delivery Systems
chemical_list: D003692:Delayed-Action Preparations