PROCESS FOR PREPARING ORAL SUSTAINED RELEASE TABLETS USING SWELLING HYDROGELS AS PLAT FORMS

摘要

The formulation of oral administrations hydrogel (I) for slow-releasing in stomach consists of vinyl pyrrolidone as monomer, albumin or alkylated albumin as linker by 0.1-0.5 Mrad 60 Co-gamma radiation. I is swelled in stomach and the albumin in the swelled hydrogel is released for 1 day then I is degraded finally.