CN108524466A - 一种氟苯尼考微囊制剂及其制备方法 - Google Patents

一种氟苯尼考微囊制剂及其制备方法 Download PDF

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CN108524466A
CN108524466A CN201810710233.9A CN201810710233A CN108524466A CN 108524466 A CN108524466 A CN 108524466A CN 201810710233 A CN201810710233 A CN 201810710233A CN 108524466 A CN108524466 A CN 108524466A
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florfenicol
parts
cosolvent
preparation
auxiliary agent
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乐其新
明文庆
刘红云
徐雅芫
汪学景
牛婷婷
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Hefei Dragon God Animal Pharmaceutical Co Ltd
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Abstract

本发明公开了一种氟苯尼考微囊制剂及其制备方法,其制作原料包括氟苯尼考、氟苯尼考助溶剂、无水葡萄糖和助剂,且所述氟苯尼考、氟苯尼考助溶剂与无水葡萄糖之间的质量比为1:1:2.5‑3.5,所述助剂的质量占氟苯尼考、氟苯尼考助溶剂与无水葡萄糖总量的1/5‑1/3。本发明用特定占比的氟苯尼考制得的微囊制剂,其配合相关助剂,使得药物服用后,有效增强了灭菌和灭寄生虫的效果;并且药物用量少,药物峰浓度降低,药物的毒副作用大大减少,安全性更高。

Description

一种氟苯尼考微囊制剂及其制备方法
技术领域
本发明涉及动物药品的制备技术领域,具体涉及一种氟苯尼考微囊制剂及其制备方法。
背景技术
动物寄生虫病是家畜传染性疾病不可忽视的重要组成部分,且病原寄生虫种类繁多,常见的体内寄生虫有蛔虫、鞭毛虫、圆线虫、旋毛虫、结节虫、球虫、绦虫、吸虫等,体外寄生虫有蜱、蚤、蝇、蜱、虱等。它严重影响肉、乳、蛋的产量,皮毛的质量,严重制约畜牧业的健康发展及某些人畜共患寄生虫病还直接危害人类的健康,给畜牧养殖行业造成巨大的经济损失同时也引起严重的公共卫生问题。
氟苯尼考(Florfeniol),抗生素类药物,通过抑制肽酰基转移酶活性而产生广谱抑菌作用,抗菌谱广,包括各种革兰氏阳性、阴性菌和支原体等。敏感菌包括牛、猪的嗜血杆菌、痢疾志贺氏菌、沙门氏菌、大肠杆菌、肺炎球菌、流感杆菌、链球菌、金黄色葡萄球菌、衣原体、钩端螺旋体,立克次氏体等。
发明内容
本发明的目的在于提供一种氟苯尼考微囊制剂及其制备方法,其解决了牲畜服用传统氟苯尼考药物灭菌和灭寄生虫效果差以及毒副作用大,安全性较低的缺陷。
本发明通过以下技术方案来实现上述目的:
一种氟苯尼考微囊制剂,其制作原料包括氟苯尼考、氟苯尼考助溶剂、无水葡萄糖和助剂,且所述氟苯尼考、氟苯尼考助溶剂与无水葡萄糖之间的质量比为1:1:2.5-3.5,所述助剂的质量占氟苯尼考、氟苯尼考助溶剂与无水葡萄糖总量的1/5-1/3。
进一步改进在于,所述氟苯尼考、氟苯尼考助溶剂与无水葡萄糖之间的质量比为1:1:3。
进一步改进在于,所述助剂的质量占氟苯尼考、氟苯尼考助溶剂与无水葡萄糖总量的1/4。
进一步改进在于,所述助剂由失水山梨醇脂肪酸酯、阿拉伯胶、β-环糊精、月桂氮卓酮、咖啡酸、苄星青霉素、苯甲酸钠、冰片、三氯叔丁醇、妥曲珠利、白头翁、金银花提取物、牵牛子、多叶勾儿茶和维生素C组成。
进一步改进在于,所述助剂按质量份数由2-4份失水山梨醇脂肪酸酯、1-3份阿拉伯胶、2-4份β-环糊精、1-3份月桂氮卓酮、3-5份咖啡酸、1-4份苄星青霉素、2-4份苯甲酸钠、1-3份冰片、2-4份三氯叔丁醇、1-3份妥曲珠利、3-5份白头翁、1-4份金银花提取物、2-4份牵牛子、3-5份多叶勾儿茶和1-4份维生素C组成。
一种氟苯尼考微囊制剂的制备方法,步骤包括
(1)称量:按质量比分别称量氟苯尼考、氟苯尼考助溶剂、无水葡萄糖和助剂,并制备内包衣层材料;
(2)混合:将步骤(1)称量的氟苯尼考、氟苯尼考助溶剂和助剂加热融化并搅拌均匀,冷却至室温后投入无水葡萄糖中,混合搅拌并调节pH值至中性,得到混合制剂;
(3)第一层包被:在步骤(2)制得的混合制剂中加入内包衣层材料进行制粒和滚圆,形成具有第一层包被的颗粒;
(4)第二层包被:在步骤(3)制得的颗粒表面喷涂丙烯酸树脂溶液,制得球形微囊颗粒;
(5)烘干:将步骤(4)制得的球形微囊颗粒烘干,得到氟苯尼考微囊制剂成品。
进一步改进在于,所述内包衣层材料选自碳酸钙或磷酸氢钙。
进一步改进在于,所述加热的温度为75~90℃。
本发明的有益效果在于:用特定占比的氟苯尼考制得的微囊制剂,其配合相关助剂,使得药物服用后,有效增强了灭菌和灭寄生虫的效果;并且药物用量少,药物峰浓度降低,药物的毒副作用大大减少,安全性更高。
附图说明
图1为氟苯尼考微囊制剂的制备流程图;
图2为猪口服两种氟苯尼考制剂后药时曲线比较图。
具体实施方式
下面结合附图对本申请作进一步详细描述,有必要在此指出的是,以下具体实施方式只用于对本申请进行进一步的说明,不能理解为对本申请保护范围的限制,该领域的技术人员可以根据上述申请内容对本申请作出一些非本质的改进和调整。
实施例1
一种氟苯尼考微囊制剂,其制作原料包括氟苯尼考、氟苯尼考助溶剂、无水葡萄糖和助剂,且所述氟苯尼考、氟苯尼考助溶剂与无水葡萄糖之间的质量比为1:1:2.5,所述助剂的质量占氟苯尼考、氟苯尼考助溶剂与无水葡萄糖总量的1/5。
其中,所述助剂由2份失水山梨醇脂肪酸酯、1份阿拉伯胶、2份β-环糊精、1份月桂氮卓酮、3份咖啡酸、1份苄星青霉素、2份苯甲酸钠、1份冰片、2份三氯叔丁醇、1份妥曲珠利、3份白头翁、1份金银花提取物、2份牵牛子、3份多叶勾儿茶和1份维生素C组成。
实施例2
一种氟苯尼考微囊制剂,其制作原料包括氟苯尼考、氟苯尼考助溶剂、无水葡萄糖和助剂,且所述氟苯尼考、氟苯尼考助溶剂与无水葡萄糖之间的质量比为1:1:3,所述助剂的质量占氟苯尼考、氟苯尼考助溶剂与无水葡萄糖总量的1/4。
其中,所述助剂由3份失水山梨醇脂肪酸酯、2份阿拉伯胶、3份β-环糊精、2份月桂氮卓酮、4份咖啡酸、2份苄星青霉素、3份苯甲酸钠、2份冰片、3份三氯叔丁醇、2份妥曲珠利、4份白头翁、2份金银花提取物、3份牵牛子、4份多叶勾儿茶和3份维生素C组成。
实施例3
一种氟苯尼考微囊制剂,其制作原料包括氟苯尼考、氟苯尼考助溶剂、无水葡萄糖和助剂,且所述氟苯尼考、氟苯尼考助溶剂与无水葡萄糖之间的质量比为1:1:3.5,所述助剂的质量占氟苯尼考、氟苯尼考助溶剂与无水葡萄糖总量的1/3。
其中,所述助剂由4份失水山梨醇脂肪酸酯、3份阿拉伯胶、4份β-环糊精、3份月桂氮卓酮、5份咖啡酸、4份苄星青霉素、4份苯甲酸钠、3份冰片、4份三氯叔丁醇、3份妥曲珠利、5份白头翁、4份金银花提取物、4份牵牛子、5份多叶勾儿茶和4份维生素C组成。
结合图1所示,上述各实施例均采用以下方法制备而成:一种氟苯尼考微囊制剂的制备方法,步骤包括
(1)称量:按质量比分别称量氟苯尼考、氟苯尼考助溶剂、无水葡萄糖和助剂,并制备内包衣层材料;
(2)混合:将步骤(1)称量的氟苯尼考、氟苯尼考助溶剂和助剂加热融化并搅拌均匀,冷却至室温后投入无水葡萄糖中,混合搅拌并调节pH值至中性,得到混合制剂;
(3)第一层包被:在步骤(2)制得的混合制剂中加入内包衣层材料进行制粒和滚圆,形成具有第一层包被的颗粒;
(4)第二层包被:在步骤(3)制得的颗粒表面喷涂丙烯酸树脂溶液,制得球形微囊颗粒;
(5)烘干:将步骤(4)制得的球形微囊颗粒烘干,得到氟苯尼考微囊制剂成品。
其中,所述内包衣层材料选自碳酸钙或磷酸氢钙;所述加热的温度为75~90℃。
氟苯尼考是时间依赖性药物,必须维持长时间有效血药浓度才能发挥最佳效果,但氟苯尼考内服吸收迅速,达峰时间快(1.82±0.61h),峰浓度高(22.61±1.03μg·mL-1),有效血药浓度维持时间不足12h,临床上为保证疗效,常加量1~3倍使用。由于氟苯尼考有较强的免疫抑制和胚胎毒性,超量使用极易造成猪场的疫苗接种失败和母猪流产,严重制约了氟苯尼考在猪场的使用。
图2给出了猪口服两种氟苯尼考制剂后药时曲线比较结果,从图中可以看出,猪分别口服传统氟苯尼考药物以及本发明制得的氟苯尼考微囊制剂,药时曲线存在较大差异。本发明通过助剂的使用以及小肠溶蚀工艺让药物在小肠段缓慢释放,血中达峰浓度降低(20μg·mL-1→12μg·mL-1),达峰时间延迟(1.8h→5.6h),体内有效血药浓度维持时间延长(15.2h→23.6h),临床用量大大减少,每吨饲料只需10%微囊氟苯尼考500克就可以有效地防治猪病,药物的毒副作用大大减少,安全性更高。
本发明制得的氟苯尼考微囊制剂适用于多种牲畜的病症预防和治疗。在喂养过程中需要参照不同的牲畜(种类、体型、育龄、病症情况等),使用合理的喂养方案。以不同类型的家养猪为例介绍,其应用方案以及保健目标见表1。
表1:微囊氟苯尼考临床使用方案
以上所述实施例仅表达了本发明的几种实施方式,其描述较为具体和详细,但并不能因此而理解为对本发明专利范围的限制。应当指出的是,对于本领域的普通技术人员来说,在不脱离本发明构思的前提下,还可以做出若干变形和改进,这些都属于本发明的保护范围。

Claims (8)

1.一种氟苯尼考微囊制剂,其特征在于:其制作原料包括氟苯尼考、氟苯尼考助溶剂、无水葡萄糖和助剂,且所述氟苯尼考、氟苯尼考助溶剂与无水葡萄糖之间的质量比为1:1:2.5-3.5,所述助剂的质量占氟苯尼考、氟苯尼考助溶剂与无水葡萄糖总量的1/5-1/3。
2.根据权利要求1所述的一种氟苯尼考微囊制剂,其特征在于:所述氟苯尼考、氟苯尼考助溶剂与无水葡萄糖之间的质量比为1:1:3。
3.根据权利要求1所述的一种氟苯尼考微囊制剂,其特征在于:所述助剂的质量占氟苯尼考、氟苯尼考助溶剂与无水葡萄糖总量的1/4。
4.根据权利要求1-3任一项所述的一种氟苯尼考微囊制剂,其特征在于:所述助剂由失水山梨醇脂肪酸酯、阿拉伯胶、β-环糊精、月桂氮卓酮、咖啡酸、苄星青霉素、苯甲酸钠、冰片、三氯叔丁醇、妥曲珠利、白头翁、金银花提取物、牵牛子、多叶勾儿茶和维生素C组成。
5.根据权利要求4所述的一种氟苯尼考微囊制剂,其特征在于:所述助剂按质量份数由2-4份失水山梨醇脂肪酸酯、1-3份阿拉伯胶、2-4份β-环糊精、1-3份月桂氮卓酮、3-5份咖啡酸、1-4份苄星青霉素、2-4份苯甲酸钠、1-3份冰片、2-4份三氯叔丁醇、1-3份妥曲珠利、3-5份白头翁、1-4份金银花提取物、2-4份牵牛子、3-5份多叶勾儿茶和1-4份维生素C组成。
6.一种氟苯尼考微囊制剂的制备方法,其特征在于:步骤包括
(1)称量:按质量比分别称量氟苯尼考、氟苯尼考助溶剂、无水葡萄糖和助剂,并制备内包衣层材料;
(2)混合:将步骤(1)称量的氟苯尼考、氟苯尼考助溶剂和助剂加热融化并搅拌均匀,冷却至室温后投入无水葡萄糖中,混合搅拌并调节pH值至中性,得到混合制剂;
(3)第一层包被:在步骤(2)制得的混合制剂中加入内包衣层材料进行制粒和滚圆,形成具有第一层包被的颗粒;
(4)第二层包被:在步骤(3)制得的颗粒表面喷涂丙烯酸树脂溶液,制得球形微囊颗粒;
(5)烘干:将步骤(4)制得的球形微囊颗粒烘干,得到氟苯尼考微囊制剂成品。
7.根据权利要求6所述的一种氟苯尼考微囊制剂的制备方法,其特征在于:所述内包衣层材料选自碳酸钙或磷酸氢钙。
8.根据权利要求6所述的一种氟苯尼考微囊制剂的制备方法,其特征在于:所述加热的温度为75~90℃。
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