A Study on the Supplement of Medicine Hydroxpropyl Methylcellulose and it's Properties of Control Release
Zhang Xiankang Jiang Chuanyu Wu Fangtao (Shanghai University of Science and Technology, Shanghai) Mao leifang (Shanghai Medical Synthetic Material Factory, Shanghai) Xie Huada (East China Hospital, Shanghai) Zheng Siji (Yan An Pharmacopeia Factory, Shanghai)
The high viscosity HPMC was prepared as the supplements of medicine. The factors of synthesis, for example alkali cellulose, concentration and ratio of the mixed etherifying agents, and product aftertreatment were studied. The control release of medicine, as potassium chloride, aminophyllinum isosorbidi dinitras (sorbide nitrate), were also investigated. The satisfied properties of control release of the high viscosity HPMC were showed.