A gastric preparation developed in order to solve the technical problems of conventional preparations, which is prepared by the bilayer packing technique and so comprises 5 to 60 %, desirably 10 to 40 % of a rapid release portion which can establish the therapeutic level of a drug shortly after the administration and 95 to 40 %, desirably 90 to 60 % of a sustained release portion which has a specific gravity of 1 or less and can maintain a satisfactory release rate.
                            为解决传统制剂的技术问题而开发的一种胃制剂,采用双层填料技术制备,包括 5%至 60%(最好是 10%至 40%)的速释部分,可在给药后短时间内确定药物的治疗
水平;以及 95%至 40%(最好是 90%至 60%)的缓释部分,其比重为 1 或更小,可保持令人满意的释放率。