DISPOSITIVO OSMOTICO PER L EROGAZIONE DI UN FARMACO AD UNA REGIONE PREDETERMINATA DELLA VIA GASTROINTESTI NALE PARTICOLARMENTE AL COLON

摘要

A drug delivery device is disclosed for delivering a drug by the oral route to the colon. The device comprises a laminated wall formed of three laminae surrounding a compartment contacting a drug with a passageway through the wall for dispensing the drug.