BACLOFEN AND R-BACLOFEN GASTRORETENTIVE DRUG DELIVERY SYSTEMS

摘要

A biodegradable, multi-layered controlled release gastroretentive baclofen or R-baclofen dosage form which is optionally divided into a first dosage of baclofen or R-baclofen for immediate release and a second dosage of baclofen or R-baclofen for controlled release in the stomach and gastrointestinal tract of a patient, folded into a capsule which disintegrates upon contact with gastric juice and the dosage form unfolds rapidly upon contact with gastric juice. The biodegradable, multi-layered gastroretentive dosage forms of the invention provide fast onset of baclofen or R-baclofen activity with prolonged absorption and minimal undesirable side effects.