Using HPMC,EC,MCC et al. As excipients and prepared by dry -coated technique,salbutamol sulfate tablets can approach the aim of 5h delayed -release.

• 选择羟丙茎甲基纤维素(HPMC),乙基纤维素(EC),微晶纤维素(MCC)等物料,采用干压包衣技术,有望解决硫酸沙丁胺醇延迟定时释药的难题。