Sustained release of drugs from ethylcellulose microcapsules containing drugs dispersed in matrices.
D002214:Capsules; D002482:Cellulose / Q000031:analogs & derivatives*; D003692:Delayed-Action Preparations; D004339:Drug Compounding
D002214:Capsules; D003692:Delayed-Action Preparations; C013517:ethyl cellulose; D002482:Cellulose