Lecture Dr. Saima Drug Delivery System (1).pdf

Drug Delivery System Criteria for a drug delivery system Different Mechanism of Controlled Release of a drug Different Mechanism of Controlled Release of a drug A schematic illustrating the different controlled mechanis...

Drug Delivery System Criteria for a drug delivery system Different Mechanism of Controlled Release of a drug Different Mechanism of Controlled Release of a drug A schematic illustrating the different controlled mechanisms of drug release. A 1 ) Reservoir-based dissolution- controlled mechanism. A 2 ) Matrix-based dissolution- controlled mechanism. B 1 ) Reservoir-based diffusion- controlled mechanism. B 2 ) Matrix-based diffusion-controlled mechanism. C) Swelling-controlled mechanism. D) Osmosis-controlled mechanism. E 1 ) Surface-erosion-controlled mechanism. E 2 ) Bulk-erosion-controlled mechanism. F) Prodrug-based mechanism. G) Externally controlled mechanism. Types of Release System