METHODS: The sustained release tablets were prepared by using salbutamol sulfate, lactose, sodium carboxymethyl starch, HPMC, EC, and MCC and coated with enteric soluble acrylic resin.

• 方法:用硫酸沙丁胺醇、乳糖、羧甲基淀粉钠、羟丙基甲基纤维素、乙基纤维素、微晶纤维素制备成缓释片,再用肠溶型丙烯酸树脂包衣,制备成延迟释药片;