The shape of the tablet to enhance the retention in the stomach for controlled release oral dosage form of swelling

摘要

(57) Abstract: retention in the stomach of an oral drug dosage form, by a specific orientation, the use of the shaped swellable dosage form to prevent them from passing through without realizing the pylorus improved by. Planar projection shape, be one having two orthogonal axes of different lengths, the longer is short enough to allow easy under swallows before swelling, shorter passes pylorus within an hour and a half it is long enough to prevent.