CN106309409B - 一种酒石酸泰乐菌素预混剂组合物的缓释微丸制备方法 - Google Patents
一种酒石酸泰乐菌素预混剂组合物的缓释微丸制备方法 Download PDFInfo
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- A61K31/70—Carbohydrates; Sugars; Derivatives thereof
- A61K31/7042—Compounds having saccharide radicals and heterocyclic rings
- A61K31/7048—Compounds having saccharide radicals and heterocyclic rings having oxygen as a ring hetero atom, e.g. leucoglucosan, hesperidin, erythromycin, nystatin, digitoxin or digoxin
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Abstract
本发明涉及一种酒石酸泰乐菌素预混剂组合物及其缓释微丸制备方法,解决现有技术中酒石酸泰乐菌素包封率低,避光、适口性差,不能有效控制酒石酸泰乐菌素释放效率,且不易工业化生产等问题。制备方法为:先粉碎固体组分,筛分,酒石酸泰乐菌素与填充剂混合,加入粘合剂,在制粒机上包裹肠溶层和缓释层,本发明获得一种酒石酸泰乐菌素预混剂组合物和酒石酸泰乐菌素缓释微丸制备方法,达到全包封,适口性好,能有效控制酒石酸泰乐菌素释放效率,且可以工业化生产。
Description
技术领域
本发明涉及一种酒石酸泰乐菌素预混剂组合物的缓释微丸制备方法,属于兽药制备技术领域。
背景技术
酒石酸泰乐菌素属于大环内脂类抗生素,为禽类专用的抗生素,是治疗禽兽支原体病的理想药物。酒石酸泰乐菌素通常的使用方法是拌入饲料中给药或放入动物的饮水中,但是酒石酸泰乐霉素原料药气味较大,味苦,且易飞散,使其适口性差,影响动物采食,需要增加给药次数,不利于达到高效的治疗效果,现有技术CN103301144B公开了一种兽用酒石酸乙酰异戊酰泰乐菌素预混剂制备方法,采用酒石酸乙酰异戊酰泰乐菌素与载体复合物混合获得包被载体混合物,再加入羧甲基纤维素、D-山梨醇和无水乙醇混合获得半包合的药物,加入聚乙二醇200混合提高包封率,真空干燥使无水乙醇挥发,加入滑石粉混合,然后稀释到重量百分比的20%,获得酒石酸乙酰异戊酰泰乐菌素预混剂,该制备方法用到无水乙醇等有机溶剂,且制备工艺繁琐,不适用于工业化生产。
发明内容
本发明提供一种酒石酸泰乐菌素预混剂组合物的缓释微丸制备方法,解决现有技术中酒石酸泰乐菌素包封率低,避光、适口性差,不能有效控制酒石酸泰乐菌素释放效率,且不易工业化生产等问题。
为了实现本发明的目的,技术方案公开了一种酒石酸泰乐菌素预混剂组合物,按重量百分比该组合物由以下组分组成:
酒石酸泰乐菌素:2%~10%;
填充剂:74%~84.7%;
粘合剂:1%~4.5%;
肠溶材料:5%~15%;
肠溶抗黏剂:3.5%~6.5%;
肠溶增塑剂:0.5%~1.5%;
缓释材料:2%~8%;
缓释抗黏剂:0.5%~5%;
缓释增塑剂:0.3%~2%。
本发明中,所述填充剂为淀粉、蔗糖、乳糖、微晶纤维素、交联羧甲基纤维素钠中一种或多种。
本发明中,所述粘合剂为质量浓度为2%~10%的聚乙烯吡咯酮水溶液、质量浓度为2%~10%的羟丙基纤维素水溶液、质量浓度为2%~10%的羟丙纤维素中一种或多种。
本发明中,所述肠溶材料为甲基丙烯酸共聚物A型、甲基丙烯酸共聚物B型、甲基丙烯酸共聚物C型、羟丙甲纤维素酞酸酯中一种或多种。
本发明中,所述肠溶抗黏剂和所述缓释抗黏剂为单硬脂酸甘油酯、滑石粉中一种或两种。
本发明中,所述肠溶增塑剂和所述缓释增塑剂为丙二醇、柠檬酸三乙酯、聚乙二醇6000中一种或多种。
本发明中,所述缓释材料为季氨基甲基丙烯酸脂共聚物B型与A型混合物、季氨基甲基丙烯酸脂共聚物B型与A型的水分散体混合物中一种或两种。
基于酒石酸泰乐菌素预混剂组合物,为了实现本发明的目的,技术方案也公开了一种酒石酸泰乐菌素缓释微丸制备方法,该方法由以下工艺步骤组成:
(1)按重量百分比称取酒石酸泰乐菌素预混剂组合物的各组分,将各组分中固体组分粉碎,使粉体分别筛分通过60目~100目筛分网,各组分单独储存,然后取酒石酸泰乐菌素与填充剂加入湿法制粒机中,湿法制粒机转速为500r/min~1000r/min,搅拌时间为1min~3min,使酒石酸泰乐菌素与填充剂混合均匀,获得酒石酸泰乐菌素填充剂混合物;
(2)在步骤(1)获得酒石酸泰乐菌素填充剂混合物中加入粘合剂,在湿法制粒机中混合均匀,搅拌转速为800r/min~1800r/min,剪切转速为1200r/min~2500r/
min,搅拌时间为2min~3min,获得酒石酸泰乐菌素软材;
(3)将步骤(2)制成的酒石酸泰乐菌素软材,用挤出机制得长条形物料,筛板孔径0.4mm~0.6mm,通过抛丸机,抛丸机转速为1200r/min~2500r/min,获得酒石酸泰乐菌素湿微丸;
(4)将步骤(3)中获得酒石酸泰乐菌素湿微丸置于流化床中干燥,物料温度为40℃~48℃,风机频率25HZ~40HZ,在60℃~80℃下干燥15min~30min,获得酒石酸泰乐菌素干微丸;
(5)将肠溶材料、肠溶抗黏剂和肠溶增塑剂在配浆罐中混合均匀,搅拌转速为500r/min~600r/min,搅拌时间为0.5h~1.5h,获得肠溶包衣液,将步骤(4)中获得酒石酸泰乐菌素微丸加入多功能制粒机中,控制物料温度40℃~48℃,风机频率25HZ~40HZ,雾化压力为0.1MPa~0.3MPa,蠕动泵频率为2HZ~16HZ,喷入肠溶包衣液,喷液完成,在60℃~80℃下干燥15min~30min,使其水分控制在3%以内,获得肠溶酒石酸泰乐菌素微丸;
(6)将缓释材料、缓释抗黏剂、缓释增塑剂在配浆罐中混合均匀,搅拌转速为500r/min~600r/min,搅拌时间为0.5h~1.5h,获得缓释包衣液,将步骤(5)中获得肠溶酒石酸泰乐菌素微丸加入多功能制粒机中,控制物料温度40℃~48℃,风机频率25HZ~40HZ,雾化压力为0.1MPa~0.3MPa,蠕动泵频率为2HZ~16HZ,喷入缓释包衣液,喷液完成,在60℃~80℃下干燥15min~30min,使其水分控制在3%以内,获得酒石酸泰乐菌素缓释微丸。
本发明的有益效果:
1、本发明将酒石酸泰乐菌素制成容易释放的微丸,即在粒径均匀的酒石酸泰乐菌素表面先覆盖粘合剂,再加入助流剂,然后再用制粒机包衣肠溶层和缓释层,从而实现酒石酸泰乐菌素的全包封率,包裹率高,适口性好,有效控制酒石酸泰乐菌素释放速度和效率,达到稳定释放的释药效果;
2、本发明制备的酒石酸泰乐菌素缓释微丸,能通过40目~50目筛分,预混剂的释药行为的总和不会因个别预混剂微球在制备缺陷对整体制剂释药行为产生严重影响,因此释药的重现性和一致性方面优于现有缓释制剂;
3、本发明制备的酒石酸泰乐菌素缓释微丸,具有避光、掩味、在胃酸环境中被破坏量不超过10%,即在胃酸中通过缓释包衣层的保护,预混剂微球的被破坏量少,进入肠道时,肠溶层溶解,血药浓度水平波动小,产品间的差异小,质量稳定。
具体实施方式
以下将参照实例对本发明作进一步的详细描述,但本发明不限于这些具体实例。
酒石酸泰乐菌素预混剂组合物的,按重量百分比该组合物由以下组分组成:
酒石酸泰乐菌素:2%~10%;
填充剂:74%~84.7%;
粘合剂:1%~4.5%;
肠溶材料:5%~15%;
肠溶抗黏剂:3.5%~6.5%;
肠溶增塑剂:0.5%~1.5%;
缓释材料:2%~8%;
缓释抗黏剂:0.5%~5%;
缓释增塑剂:0.3%~2%。
基于上述组分制备的酒石酸泰乐菌素缓释微丸,实施例1:
(1)按重量百分比称取酒石酸泰乐菌素预混剂组合物的各组分,将各组分中固体组分粉碎,使粉体分别筛分通过60目~100目筛分网,各组分单独储存,然后取酒石酸泰乐菌素与微晶纤维素加入湿法制粒机中,搅拌转速为500r/min~1000r/min,搅拌时间为1min~3min,使酒石酸泰乐菌素与填充剂混合均匀,获得酒石酸泰乐菌素填充剂混合物;
(2)在步骤(1)获得酒石酸泰乐菌素填充剂混合物中加入质量浓度为2%~10%的羟丙基纤维素水溶液,在湿法制粒机中混合均匀,搅拌转速为800r/min~1800r/
min,剪切转速为1200r/min~2500r/min,搅拌时间为2min~3min,获得酒石酸泰乐菌素软材;
(3)将步骤(2)制成的酒石酸泰乐菌素软材,用挤出机制得长条形物料,筛板孔径0.4mm~0.6mm,通过抛丸机,抛丸机转速为1200r/min~2500r/min,获得酒石酸泰乐菌素湿微丸;
(4)将步骤(3)中获得酒石酸泰乐菌素湿微丸置于流化床中干燥,物料温度为40℃~48℃,风机频率25HZ~40HZ,在60℃~80℃下干燥15min~30min,获得酒石酸泰乐菌素干微丸;
(5)将甲基丙烯酸共聚物A型、单硬脂酸甘油酯和柠檬酸三乙酯在配浆罐中混合均匀,搅拌转速为500r/min~600r/min,搅拌时间为0.5h~1.5h,获得肠溶包衣液,将步骤(4)中获得酒石酸泰乐菌素微丸加入多功能制粒机中,控制物料温度40℃~48℃,风机频率25HZ~40HZ,雾化压力为0.1MPa~0.3MPa,蠕动泵频率为2HZ~16HZ,喷入肠溶包衣液,喷液完成,在60℃~80℃下干燥15min~30min,使其水分控制在3%以内,获得肠溶酒石酸泰乐菌素微丸;
(6)将季氨基甲基丙烯酸脂共聚物B型与A型混合物、单硬脂酸甘油酯、柠檬酸三乙酯在配浆罐中混合均匀,搅拌转速为500r/min~600r/min,搅拌时间为0.5h~1.5h,获得缓释包衣液,将步骤(5)中获得肠溶酒石酸泰乐菌素微丸加入多功能制粒机中,控制物料温度40℃~48℃,风机频率25HZ~40HZ,雾化压力为0.1MPa~0.3MPa,蠕动泵频率为2HZ~16HZ,喷入缓释包衣液,喷液完成,在60℃~80℃下干燥15min~30min,使其水分控制在3%以内,获得酒石酸泰乐菌素缓释微丸。
实施例2:
(1)按重量百分比称取酒石酸泰乐菌素预混剂组合物的各组分,将各组分中固体组分粉碎,使粉体分别筛分通过60目~100目筛分网,各组分单独储存,然后取酒石酸泰乐菌素与交联羧甲基纤维素钠加入湿法制粒机中,搅拌转速为500r/min~1000r/min,搅拌时间为1min~3min,使酒石酸泰乐菌素与填充剂混合均匀,获得酒石酸泰乐菌素填充剂混合物;
(2)在步骤(1)获得酒石酸泰乐菌素填充剂混合物中加入质量浓度为2%~10%的聚乙烯吡咯酮水溶液,在湿法制粒机中混合均匀,搅拌转速为800r/min~1800r/
min,剪切转速1200r/min~2500r/min,搅拌时间为2min~3min,获得酒石酸泰乐菌素软材;
(3)将步骤(2)制成的酒石酸泰乐菌素软材,用挤出机制得长条形物料,筛板孔径0.4mm~0.6mm,通过抛丸机,抛丸机转速为1200r/min~2500r/min,获得酒石酸泰乐菌素湿微丸;
(4)将步骤(3)中获得酒石酸泰乐菌素湿微丸置于流化床中干燥,物料温度为40℃~48℃,风机频率25HZ~40HZ,在60℃~80℃下干燥15min~30min,获得酒石酸泰乐菌素干微丸;
(5)将甲基丙烯酸共聚物C型、单硬脂酸甘油酯和柠檬酸三乙酯在配浆罐中混合均匀,搅拌转速为500r/min~600r/min,搅拌时间为0.5h~1.5h,获得肠溶包衣液,将步骤(4)中获得酒石酸泰乐菌素微丸加入多功能制粒机中,控制物料温度40℃~48℃,风机频率25HZ~40HZ,雾化压力为0.1MPa~0.3MPa,蠕动泵频率为2HZ~16HZ,喷入肠溶包衣液,喷液完成,在60℃~80℃下干燥15min~30min,使其水分控制在3%以内,获得肠溶酒石酸泰乐菌素微丸;
(6)将季氨基甲基丙烯酸脂共聚物B型与A型混合物、单硬脂酸甘油酯、柠檬酸三乙酯在配浆罐中混合均匀,搅拌转速为500r/min~600r/min,搅拌时间为0.5h~1.5h,获得缓释包衣液,将步骤(5)中获得肠溶酒石酸泰乐菌素微丸加入多功能制粒机中,控制物料温度40℃~48℃,风机频率25HZ~40HZ,雾化压力为0.1MPa~0.3MPa,蠕动泵频率为2HZ~16HZ,喷入缓释包衣液,喷液完成,在60℃~80℃下干燥15min~30min,使其水分控制在3%以内,获得酒石酸泰乐菌素缓释微丸。
实施例3:
(1)按重量百分比称取酒石酸泰乐菌素预混剂组合物的各组分,将各组分中固体组分粉碎,使粉体分别筛分通过60目~100目筛分网,各组分单独储存,然后取酒石酸泰乐菌素与乳糖加入湿法制粒机中,搅拌转速为500r/min~1000r/min,搅拌时间为1min~3min,使酒石酸泰乐菌素与填充剂混合均匀,获得酒石酸泰乐菌素填充剂混合物;
(2)在步骤(1)获得酒石酸泰乐菌素填充剂混合物中加入质量浓度为2%~10%的羟丙纤维素,在湿法制粒机中混合均匀,搅拌转速为800r/min~1800r/min,剪切转速1200r/min~2500r/min,搅拌时间为2min~3min,获得酒石酸泰乐菌素软材;
(3)将步骤(2)制成的酒石酸泰乐菌素软材,用挤出机制得长条形物料,筛板孔径0.4mm~0.6mm,通过抛丸机,抛丸机转速为1200r/min~2500r/min,获得酒石酸泰乐菌素湿微丸;
(4)将步骤(3)中获得酒石酸泰乐菌素湿微丸置于流化床中干燥,物料温度为40℃~48℃,风机频率25HZ~40HZ,在60℃~80℃下干燥15min~30min,获得酒石酸泰乐菌素干微丸;
(5)将甲基丙烯酸共聚物A型、单硬脂酸甘油酯和柠檬酸三乙酯在配浆罐中混合均匀,搅拌转速为500r/min~600r/min,搅拌时间为0.5h~1.5h,获得肠溶包衣液,将步骤(4)中获得酒石酸泰乐菌素微丸加入多功能制粒机中,控制物料温度40℃~48℃,风机频率25HZ~40HZ,雾化压力为0.1MPa~0.3MPa,蠕动泵频率为2HZ~16HZ,喷入肠溶包衣液,喷液完成,在60℃~80℃下干燥15min~30min,使其水分控制在3%以内,获得肠溶酒石酸泰乐菌素微丸;
(6)将季氨基甲基丙烯酸脂共聚物B型与A型混合物、单硬脂酸甘油酯、柠檬酸三乙酯在配浆罐中混合均匀,搅拌转速为500r/min~600r/min,搅拌时间为0.5h~1.5h,获得缓释包衣液,将步骤(5)中获得肠溶酒石酸泰乐菌素微丸加入多功能制粒机中,控制物料温度40℃~48℃,风机频率25HZ~40HZ,雾化压力为0.1MPa~0.3MPa,蠕动泵频率为2HZ~16HZ,喷入缓释包衣液,喷液完成,在60℃~80℃下干燥15min~30min,使其水分控制在3%以内,获得酒石酸泰乐菌素缓释微丸。
实施例4:
(1)按重量百分比称取酒石酸泰乐菌素预混剂组合物的各组分,将各组分中固体组分粉碎,使粉体分别筛分通过60目~100目筛分网,各组分单独储存,然后取酒石酸泰乐菌素与蔗糖加入湿法制粒机中,搅拌转速为500r/min~1000r/min,搅拌时间为1min~3min,使酒石酸泰乐菌素与填充剂混合均匀,获得酒石酸泰乐菌素填充剂混合物;
(2)在步骤(1)获得酒石酸泰乐菌素填充剂混合物中加入质量浓度为2%~10%的聚乙烯吡咯酮水溶液,在湿法制粒机中混合均匀,搅拌转速为800r/min~1800r/
min,剪切转速1200r/min~2500r/min,搅拌时间为2min~3min,获得酒石酸泰乐菌素软材;
(3)将步骤(2)制成的酒石酸泰乐菌素软材,用挤出机制得长条形物料,筛板孔径0.4mm~0.6mm,通过抛丸机,抛丸机转速为1200r/min~2500r/min,获得酒石酸泰乐菌素湿微丸;
(4)将步骤(3)中获得酒石酸泰乐菌素湿微丸置于流化床中干燥,物料温度为40℃~48℃,风机频率25HZ~40HZ,在60℃~80℃下干燥15min~30min,获得酒石酸泰乐菌素干微丸;
(5)将羟丙甲纤维素酞酸酯、单硬脂酸甘油酯和柠檬酸三乙酯在配浆罐中混合均匀,搅拌转速为500r/min~600r/min,搅拌时间为0.5h~1.5h,获得肠溶包衣液,将步骤(4)中获得酒石酸泰乐菌素微丸加入多功能制粒机中,控制物料温度40℃~48℃,风机频率25HZ~40HZ,雾化压力为0.1MPa~0.3MPa,蠕动泵频率为2HZ~16HZ,喷入肠溶包衣液,喷液完成,在60℃~80℃下干燥15min~30min,使其水分控制在3%以内,获得肠溶酒石酸泰乐菌素微丸;
(6)将季氨基甲基丙烯酸脂共聚物B型与A型的水分散体混合物、单硬脂酸甘油酯、柠檬酸三乙酯在配浆罐中混合均匀,搅拌转速为500r/min~600r/min,搅拌时间为0.5h~1.5h,获得缓释包衣液,将步骤(5)中获得肠溶酒石酸泰乐菌素微丸加入多功能制粒机中,控制物料温度40℃~48℃,风机频率25HZ~40HZ,雾化压力为0.1MPa~0.3MPa,蠕动泵频率为2HZ~16HZ,喷入缓释包衣液,喷液完成,在60℃~80℃下干燥15min~30min,使其水分控制在3%以内,获得酒石酸泰乐菌素缓释微丸。
将实施例1~4中获得的酒石酸泰乐菌素缓释微丸,分别放入0.1mol/L的盐酸
溶液中,37℃恒温水浴锅中,放置2小时并用溶出测定仪检测溶出度结果如下:
| 实施例 | 溶出度 |
| 实施例1 | 5% |
| 实施例2 | 7% |
| 实施例3 | 5% |
| 实施例4 | 8% |
Claims (7)
1.一种酒石酸泰乐菌素预混剂组合物的缓释微丸制备方法,其特征在于,酒石酸泰乐菌素预混剂组合物按重量百分比由以下组分组成:
酒石酸泰乐菌素:2%~10%;
填充剂:74%~84.7%;
粘合剂:1%~4.5%;
肠溶材料:5%~15%;
肠溶抗黏剂:3.5%~6.5%;
肠溶增塑剂:0.5%~1.5%;
缓释材料:2%~8%;
缓释抗黏剂:0.5%~5%;
缓释增塑剂:0.3%~2%;
该酒石酸泰乐菌素预混剂组合物的缓释微丸制备方法,由以下工艺步骤组成:
(1)按重量百分比称取酒石酸泰乐菌素预混剂组合物的各组分,将各组分中固体组分粉碎,使粉体分别筛分通过60目~100目筛分网,各组分单独储存,然后取酒石酸泰乐菌素与填充剂加入湿法制粒机中,湿法制粒机转速为500r/min~1000r/min,搅拌时间为1min~3min,使酒石酸泰乐菌素与填充剂混合均匀,获得酒石酸泰乐菌素填充剂混合物;
(2)在步骤(1)获得酒石酸泰乐菌素填充剂混合物中加入粘合剂,在湿法制粒机中混合均匀,搅拌转速为800r/min~1800r/min,剪切转速为1200r/
min~2500r/min,搅拌时间为2min~3min,获得酒石酸泰乐菌素软材;
(3)将步骤(2)制成的酒石酸泰乐菌素软材,用挤出机制得长条形物料,筛板孔径0.4mm~0.6mm,通过抛丸机,抛丸机转速为1200r/min~2500r/min,获得酒石酸泰乐菌素湿微丸;
(4)将步骤(3)中获得酒石酸泰乐菌素湿微丸置于流化床中干燥,物料温度为40℃~48℃,风机频率25HZ~40HZ,在60℃~80℃下干燥15min~30min,获得酒石酸泰乐菌素干微丸;
(5)将肠溶材料、肠溶抗黏剂和肠溶增塑剂在配浆罐中混合均匀,搅拌转速为500r/min~600r/min,搅拌时间为0.5h~1.5h,获得肠溶包衣液,将步骤(4)中获得酒石酸泰乐菌素微丸加入多功能制粒机中,控制物料温度40℃~48℃,风机频率25HZ~40HZ,雾化压力为0.1MPa~0.3MPa,蠕动泵频率为2HZ~16HZ,喷入肠溶包衣液,喷液完成,在60℃~80℃下干燥15min~30min,使其水分控制在3%以内,获得肠溶酒石酸泰乐菌素微丸;
(6)将缓释材料、缓释抗黏剂、缓释增塑剂在配浆罐中混合均匀,搅拌转速为500r/min~600r/min,搅拌时间为0.5h~1.5h,获得缓释包衣液,将步骤(5)中获得肠溶酒石酸泰乐菌素微丸加入多功能制粒机中,控制物料温度40℃~48℃,风机频率25HZ~40HZ,雾化压力为0.1MPa~0.3MPa,蠕动泵频率为2HZ~16HZ,喷入缓释包衣液,喷液完成,在60℃~80℃下干燥15min~30min,使其水分控制在3%以内,获得酒石酸泰乐菌素缓释微丸。
2.根据权利要求1所述的一种酒石酸泰乐菌素预混剂组合物的缓释微丸制备方法,其特征在于:所述填充剂为淀粉、蔗糖、乳糖、微晶纤维素、交联羧甲基纤维素钠中一种或多种。
3.根据权利要求1所述的一种酒石酸泰乐菌素预混剂组合物的缓释微丸制备方法,其特征在于:所述粘合剂为质量浓度为2%~10%的聚乙烯吡咯酮水溶液、质量浓度为2%~10%的羟丙基纤维素水溶液、质量浓度为2%~10%的羟丙纤维素中一种或多种。
4.根据权利要求1所述的一种酒石酸泰乐菌素预混剂组合物的缓释微丸制备方法,其特征在于:所述肠溶材料为甲基丙烯酸共聚物A型、甲基丙烯酸共聚物B型、甲基丙烯酸共聚物C型、羟丙甲纤维素酞酸酯中一种或多种。
5.根据权利要求1所述的一种酒石酸泰乐菌素预混剂组合物的缓释微丸制备方法,其特征在于:所述肠溶抗黏剂和所述缓释抗黏剂为单硬脂酸甘油酯、滑石粉中一种或两种。
6.根据权利要求1所述的一种酒石酸泰乐菌素预混剂组合物的缓释微丸制备方法,其特征在于:所述肠溶增塑剂和所述缓释增塑剂为丙二醇、柠檬酸三乙酯、聚乙二醇6000中一种或多种。
7.根据权利要求1所述的一种酒石酸泰乐菌素预混剂组合物的缓释微丸制备方法,其特征在于:所述缓释材料为季氨基甲基丙烯酸脂共聚物B型与A型混合物、季氨基甲基丙烯酸脂共聚物B型与A型的水分散体混合物中一种或两种。
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