CN112587595A - 一种清热解表中药组合物及其制备方法 - Google Patents
一种清热解表中药组合物及其制备方法 Download PDFInfo
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- CN112587595A CN112587595A CN202011515830.XA CN202011515830A CN112587595A CN 112587595 A CN112587595 A CN 112587595A CN 202011515830 A CN202011515830 A CN 202011515830A CN 112587595 A CN112587595 A CN 112587595A
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- volatile oil
- chinese medicine
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Abstract
本发明提供一种清热解表中药组合物及其制备方法,包括以下步骤:取广藿香、薄荷提取挥发油,得挥发油,蒸馏后的水溶液留用;取菊花、连翘加乙醇水溶液浸泡,超声提取,滤过,药渣留用,滤液回收乙醇,得清膏;取大青叶、地黄、白薇、地骨皮、处方量75~85%的石膏以及上述的药渣,加乙醇水溶液加热回流提取,合并提取液,滤过,滤液回收乙醇后与上述水溶液和清膏合并,浓缩为稠膏;取上述的挥发油制备挥发油包合物;取余量石膏、板蓝根粉碎成细粉,得药材细粉,灭菌后备用;取上述药材细粉与辅料混匀,加入稠膏,混匀,制颗粒,干燥后加入挥发油包合物,混匀,即得。本发明提高了产品中连翘苷、菊花总黄酮含量,提高了产品的疗效。
Description
技术领域
本发明涉及中药制剂技术领域,特别涉及一种清热解表中药组合物及其制备方法。
背景技术
小儿感冒颗粒处方收载于《中国药典》2020年版一部,是中药制剂,含有广藿香、连翘、板蓝根、菊花、大青叶、地黄、地骨皮、白薇、薄荷、石膏等十味中药,具有疏风解表,清热解毒的作用,主要治疗小儿风热感冒,症见发热,头胀痛,咳嗽痰粘,咽喉肿痛,流感等方面疗效显著。其制备工艺为:取石膏25g、板蓝根粉碎成细粉;地黄、白薇、地骨皮、石膏100g加水煎煮二次,第一次3小时,第二次1小时,合并煎液,滤过;菊花、大青叶热浸二次,第一次2小时,第二次1小时,合并浸出液,滤过;广藿香、薄荷、连翘提取挥发油,其水溶液滤过,滤液与以上二液合并,浓缩至相对密度为1.30~1.35(50℃)的清膏;取清膏1份、蔗糖粉2份、糊精1份,与上述细粉混匀,制成颗粒,干燥,加入挥发油,混匀,即得。
方中连翘、菊花为臣药,从连翘中提取的连翘苷为其主要活性成份,从菊花中提取的黄酮类、挥发油为其主要活性成分,连翘苷、菊花黄酮类、挥发油的含量多少与药效密切相关,目前市面上的产品的制备方法中连翘蒸馏提取挥发油、菊花多为水提,产品中的连翘苷、菊花黄酮类的含量普遍较低,导致药效慢,治疗效果不够好。
发明内容
鉴于此,本发明针对原小儿感冒颗粒的不足,进行合理的改革,提供一种药效好的小儿感冒颗粒及其制备方法。
本发明的技术方案是这样实现的:
一种清热解表中药组合物的制备方法,所述中药组合物的原料包括以下组分:广藿香、菊花、连翘、大青叶、板蓝根、地黄、地骨皮、白薇、薄荷和石膏,其特征在于,包括以下步骤:
R1、分别取广藿香、菊花、连翘、大青叶、板蓝根、地黄、地骨皮、白薇、薄荷,净选,干燥;
R2、按处方量称取组分:广藿香、菊花、连翘、大青叶、板蓝根、地黄、地骨皮、白薇、薄荷、石膏;
R3、取广藿香、薄荷提取挥发油,得挥发油,蒸馏后的水溶液留用;
R4、取菊花、连翘加乙醇水溶液浸泡,超声提取,滤过,药渣留用,滤液回收乙醇,得清膏;
R5、取大青叶、地黄、白薇、地骨皮、处方量75~85%的石膏以及步骤R4的药渣,加乙醇水溶液加热回流提取,合并提取液,滤过,滤液回收乙醇后与步骤R3的水溶液、步骤R4的清膏合并,浓缩至60℃相对密度为1.25~1.30的稠膏;
R6、取步骤R3所得的挥发油制备挥发油包合物;
R7、取处方余量石膏、板蓝根粉碎成细粉,灭菌后备用;
R8、取步骤R7的药材细粉与辅料混匀,加入步骤R5的稠膏,混匀,制颗粒,干燥后加入步骤R6得到的挥发油包合物,混匀,制得目标产品。
进一步的,步骤R3中,所述挥发油提取方法为加5~8倍量水提取挥发油1~3小时。
进一步的,步骤R4中,所述乙醇水溶液的体积浓度为55~65%,加入量为10~20倍量,浸泡时间为0.5~1小时,超声提取时间为1~2小时。更优选地,所述乙醇水溶液的体积浓度为60%。
进一步的,步骤R5中,所述回流提取为加10~15倍量15-25%v/v乙醇水溶液加热回流提取2次以上,每次1~2小时。更优选地,所述乙醇水溶液的体积浓度为20%。
进一步的,步骤R6中,所述制备挥发油包合物的方法为:取挥发油重量8~10倍量的羟丙基-β-环糊精,加水制成饱和溶液,在40℃~50℃恒温搅拌下,加入挥发油,继续恒温搅拌1~2小时,抽滤,包结物置35~40℃真空干燥,制得挥发油包结物。
进一步的,步骤R8中,所述辅料包括蔗糖、糊精和硬脂酸镁。
进一步的,按重量份计,所述中药组合物的原料各组分的处方量为:广藿香75份、菊花75份、连翘75份、大青叶125份、板蓝根75份、地黄75份、地骨皮75份、白薇75份、薄荷50份、石膏125份。
一种清热解表中药组合物,由本发明任一项所述的清热解表中药组合物的制备方法制得。
与现有技术相比,本发明的有益效果是:
(1)本发明提高了产品中连翘苷、菊花总黄酮等主要成分的含量,提高了产品的疗效,经临床试验结果表明,本发明产品经药理实验结果表明其在止咳、祛痰和抑菌等方面均略优于传统方法制备的产品,经临床试验结果表明,其在治疗儿童感冒的总有效率在93%以上,明显高于传统制备方法生产的产品。
(2)本发明将广藿香和薄荷挥发油制成包结物,可有效减少成品在储存、运输等过程中挥发油的损失,提高了产品的稳定性,从而保证了药效。而且,利用羟丙基-β-环糊精包结工艺,制得挥发油包结物效果优。
(3)本发明利用部分石膏药材细粉作为制粒工艺的赋形剂,减少原辅料的加入,节约了生产成本。
具体实施方式
为了更好理解本发明技术内容,下面提供具体实施例,对本发明做进一步的说明。
本发明实施例所用的实验方法如无特殊说明,均为常规方法。
本发明实施例所用的材料、试剂等,如无特殊说明,均可从商业途径得到。
一、提取工艺的研究
主要对菊花、连翘、大青叶、地黄、白薇、地骨皮、石膏(4/5量)等药材的提取工艺进行了筛选。
1.连翘、菊花的提取工艺
本发明曾考察了乙醇浓度、提取方式、提取时间对菊花总黄酮提取率、连翘苷的影响。
1.1提取方式
(1)方法1:取连翘、菊花各50g,加10倍量60%(v/v)乙醇水溶液浸泡1h后超声1h,滤过,滤液回收乙醇,浓缩至稠膏。
(2)方法2:取连翘、菊花各50g,加10倍量水浸泡1h后加超声1h,滤过,滤液回收乙醇,浓缩至稠膏。
(3)方法3:取连翘、菊花各50g,加10倍量60%(v/v)乙醇水溶液浸泡1h后加热回流提取1h,滤过,滤液回收乙醇,浓缩至稠膏。
(4)方法4:取连翘、菊花各50g,加10倍量水浸泡1h后加热回流提取1h,滤过,滤液回收乙醇,浓缩至稠膏。
分别取以上方法所得稠膏,测定其得膏率及总黄酮、连翘苷的含量,结果见表1。
表1不同提取方法对连翘、菊花提取结果
由表1可知,方法2、4的提膏率均较高,但是总黄酮、连翘的含量均较低,方法3得膏率较高,总黄酮含量、连翘苷含量较低,方法1得膏率低,但总黄酮含量、连翘苷含量较高,而且乙醇溶液超声提取更为安全,综合考虑,本发明优选超声提取。
1.2乙醇浓度
在以上对比实验结果的基础上,还对乙醇浓度进行了筛选试验,利用方法1,对比了50%(v/v)乙醇、60%(v/v)乙醇、70%(v/v)乙醇,分别测定所得稠膏总黄酮、连翘苷的含量,结果见表2。
表2不同浓度乙醇水溶液对连翘、菊花提取结果
由表2可知,60%(v/v)乙醇做为提取溶媒时,总黄酮、连翘苷的含量均较高,因此,本发明优选60%(v/v)乙醇作为提取溶媒。
2.大青叶、地黄、白薇、地骨皮、石膏(4/5量)的提取工艺
传统工艺中,大青叶、地黄、白薇、地骨皮、石膏(4/5量)为水提,因此,本发明对比了以水、20%(v/v)乙醇水溶液、40%(v/v)乙醇水溶液为提取溶媒时的提取效果。
方法1:分别取大青叶10g、地黄10g、白薇10g、地骨皮10g、石膏13g,加10倍量水加热回流提取2次,每次1小时,滤过,滤液离心,取上清液。
方法2:分别取大青叶10g、地黄10g、白薇10g、地骨皮10g、石膏13g,加10倍量20%(v/v)乙醇加热回流提取2次,每次1小时,滤过,滤液离心,取上清液。
方法3:分别取大青叶10g、地黄10g、白薇10g、地骨皮10g、石膏13g,加10倍量40%(v/v)乙醇加热回流提取2次,每次1小时,滤过,滤液离心,取上清液。
分别取以上方法所得提取液100μl,进行金黄色葡萄球菌、肺炎球菌的抑菌圈试验,结果见表3。
表3不同提取溶媒提取物对金黄色葡萄球菌、肺炎球菌的抑菌效果
由表3可知,三种方法的提取液均对金黄色葡萄球菌、肺炎球菌有一定的抑制作用,其中方法2的提取液的抑菌作用最强,因此,本发明优选20%(v/v)乙醇水溶液作为提取溶媒。
二、清热解表中药组合物的制备方法
实施例1
R1、分别取广藿香、菊花、连翘、大青叶、板蓝根、地黄、地骨皮、白薇、薄荷,净选,干燥;
R2、按以下重量份称取组分:广藿香75g、连翘75g、板蓝根75g、菊花75g、大青叶125g、地黄75g、地骨皮75g、白薇75g、薄荷50g、石膏125g;
R3、取广藿香、薄荷加5倍量水提取挥发油3小时提取挥发油,得挥发油,蒸馏后的水溶液留用;
R4、取菊花、连翘加10倍量60%(v/v)乙醇水溶液浸泡0.5小时,超声提取2小时,滤过,药渣留用,滤液回收乙醇,得清膏;
R5、取大青叶、地黄、白薇、地骨皮、100g的石膏以及步骤R4的药渣,加10倍量20%(v/v)乙醇水溶液加热回流提取2次,每次2小时,合并提取液,滤过,滤液回收乙醇后与步骤R3的水液、步骤R4的清膏合并,浓缩至60℃相对密度为1.25的稠膏;
R6、取步骤R3所得的挥发油重量8倍量的羟丙基-β-环糊精,加水制成饱和溶液,在40℃恒温搅拌下,加入挥发油,继续恒温搅拌2小时,抽滤,包结物置35℃真空干燥,即得挥发油包结物;
R7、取石膏25g、板蓝根粉碎成细粉,灭菌后备用;
R8、取步骤R7的药材细粉与蔗糖、糊精、硬脂酸镁辅料混匀,加入步骤R5的稠膏,混匀,制颗粒,干燥后加入步骤R6得到的挥发油包合物,混匀,分装,即得。
实施例2
R1.分别取广藿香、菊花、连翘、大青叶、板蓝根、地黄、地骨皮、白薇、薄荷,净选,干燥;
R2.按以下重量份称取组分:广藿香75g、连翘75g、板蓝根75g、菊花75g、大青叶125g、地黄75g、地骨皮75g、白薇75g、薄荷50g、石膏125g;
R3、取广藿香、薄荷加8倍量水提取挥发油1小时提取挥发油,得挥发油,蒸馏后的水溶液留用;
R4、取菊花、连翘加20倍量60%(v/v)乙醇水溶液浸泡1小时,超声提取1小时,滤过,药渣留用,滤液回收乙醇,得清膏;
R5、取大青叶、地黄、白薇、地骨皮、100g的石膏以及步骤R4的药渣,加15倍量20%(v/v)乙醇水溶液加热回流提取2次,每次1小时,合并提取液,滤过,滤液回收乙醇后与步骤R3的水液、步骤R4的清膏合并,浓缩至60℃相对密度为1.30的稠膏;
R6、取步骤R3所得的挥发油重量10倍量的羟丙基-β-环糊精,加水制成饱和溶液,在50℃恒温搅拌下,加入挥发油,继续恒温搅拌1小时,抽滤,包结物置40℃真空干燥,即得挥发油包结物;
R7、取石膏25g、板蓝根粉碎成细粉,灭菌后备用;
R8、取步骤R7的药材细粉与蔗糖、糊精、硬脂酸镁辅料混匀,加入步骤R5的稠膏,混匀,制颗粒,干燥后加入步骤R6得到的挥发油包合物,混匀,分装,即得。
实施例3
R1.分别取广藿香、菊花、连翘、大青叶、板蓝根、地黄、地骨皮、白薇、薄荷,净选,干燥;
R2.按以下重量份称取组分:广藿香75g、连翘75g、板蓝根75g、菊花75g、大青叶125g、地黄75g、地骨皮75g、白薇75g、薄荷50g、石膏125g;
R3、取广藿香、薄荷加6倍量水提取挥发油2小时提取挥发油,得挥发油,蒸馏后的水溶液留用;
R4、取菊花、连翘加15倍量60%(v/v)乙醇水溶液浸泡0.5小时,超声提取1.5小时,滤过,药渣留用,滤液回收乙醇,得清膏;
R5、取大青叶、地黄、白薇、地骨皮、100g的石膏以及步骤R4的药渣,加12倍量20%(v/v)乙醇水溶液加热回流提取2次,第一次1.5小时,第二次1小时,合并提取液,滤过,滤液回收乙醇后与步骤R3的水液、步骤R4的清膏合并,浓缩至60℃相对密度为1.28的稠膏;
R6、取步骤R3所得的挥发油重量9倍量的羟丙基-β-环糊精,加水制成饱和溶液,在45℃恒温搅拌下,加入挥发油,继续恒温搅拌1.5小时,抽滤,包结物置38℃真空干燥,即得挥发油包结物;
R7、取石膏25g、板蓝根粉碎成细粉,灭菌后备用;
R8、取步骤R7的药材细粉与蔗糖、糊精、硬脂酸镁辅料混匀,加入步骤R5的稠膏,混匀,制颗粒,干燥后加入步骤R6得到的挥发油包合物,混匀,分装,即得。
对比例1(传统方法)
R1.分别取广藿香、连翘、板蓝根、菊花、大青叶、地黄、地骨皮、白薇、薄荷,净选,干燥;
R2.按以下重量份称取组分:广藿香75g、连翘75g、板蓝根75g、菊花75g、大青叶125g、地黄75g、地骨皮75g、白薇75g、薄荷50g、石膏125g;
R3、取石膏25g、板蓝根粉碎成细粉;
R4、地黄、白薇、地骨皮、石膏100g加水煎煮二次,第一次3小时,第二次1小时,合并煎液,滤过;
R5、菊花、大青叶热浸二次,第一次2小时,第二次1小时,合并浸出液,滤过;
R6、广藿香、薄荷、连翘提取挥发油,其水溶液滤过,滤液与以上二液合并,浓缩至相对密度为1.30~1.35(50℃)的清膏;
R7、取清膏1份、蔗糖粉2份、糊精1份,与上述细粉混匀,制成颗粒,干燥,加入挥发油,混匀,即得。
四、药理试验
目的:通过考察本发明产品的止咳、祛痰及抑菌作用,为临床用药提供实验依据。
1试验材料
样品:本发明实施例3、对比例1样品。
实验动物:昆明种小鼠,清洁级,雌雄兼用,体质量20±2g,由广西医科大学动物室提供。
2方法与结果
2.1小鼠浓氨水致咳实验
取昆明种小鼠50只,随机分成5组:实施例3样品高(12g/kg)、中(6g/kg)、低(3g/kg)三个剂量组,空白对照组(给同体积0.9%生理盐水),对比例1样品(6g/kg)。灌胃给药,1次/d,连续7d。末次给药后lh,将小鼠逐一放入4L密闭干燥容器内,恒压喷入25%浓氨水气雾,喷雾5s引咳,观察其咳嗽潜伏期及咳嗽次数(每2min)。
致咳后各组小鼠均出现不同程度的嘴巴张开,腹肌收缩等咳嗽现象,与空白对照组相比,本发明实施例3样品高剂、中、低量组和对比例1样品能显著延长小鼠咳嗽的潜伏期(P<0.01或P<0.05),并减少咳嗽次数(P<0.01或P<0.05)。结果表明,随着本发明实施例3样品剂量的增加,各组小鼠咳嗽的潜伏期有所延长,咳嗽次数有所减少,本发明实施例3样品具有一定的止咳作用,且作用优于对比例1(传统方法制备)样品。具体见表4。
表4对浓氨水致小鼠咳嗽反应
注:与空白对照组比:*P<0.05,**P<0.01
2.3小鼠气管段酚红排泌实验
取昆明种小鼠50只,随机分成5组:样品高(12g/kg)、中(6g/kg)、低(3g/kg)三个剂量组,空白对照组(给同体积0.9%生理盐水),对比例1样品(6g/kg)。灌胃给药,1次/d,连续7d。末次给药后30min,每只小鼠腹腔注射2.5%酚红NaHCO3溶液0.02ml/g体质量,30min后处死小鼠,解剖分离气管,将各气管段放入预先盛有1.5ml 5%NaHCO3溶液的试管中,超声波清洗,使气管段中的酚红完全释放,清洗液离心,取上清液于全波长酶标仪546nm处比色,测定吸光度(A)值,代入酚红标准曲线,计算酚红含量。
与空白对照组比较,本发明实施例3样品高、中剂量组和对比例1(传统方法制备)样品组的酚红分泌量显著增加(P<0.05或P<0.01),本发明实施例3样品低剂量组酚红分泌量虽然有一定程度地增加,但差异无统计学意义(P>0.05)。结果表明,本发明实施例3样品高、中剂量组有一定的祛痰作用。具体见表5。
表5对小鼠气管段酚红排泄量的影响
注:与空白对照组比:*P<0.05,**P<0.01
2.4抑菌作用
取一定数量的小试管,分为10组,每组10支,分别于各组各管分别加入营养肉汤培养基1ml。1~5组第一个小试管加入本发明实施例3样品溶液(1.0g/ml)1mL,6~10组第一个试管加入对比例1样品(1.0g/ml)1mL,各组混匀后各吸出1mL加入各自第二个小试管中,依次重复进行递减稀释到第九管,第九管混匀后,吸出1mL混合液弃去,第十管不加药液,然后吸取培养24小时稀释至10-3的菌悬液(每1mL含菌数约为1亿cfu),各组从第一管到第八管分加紧加入0.1mL,第十管亦加入菌液0.1mL,第九管加药不加菌作为阴性对照,第十管加菌液不加药作为阳性对照。将上述制备好的小试管置培养箱中36℃培养24~48小时,用肉眼观察各管有无细菌生长,结果详见表6。
表6对实验菌株的抑菌效价
表6结果表明,本发明实施例3样品和对比例1样品体外对金色葡萄球菌、感冒嗜血杆菌、肺炎球菌和铜绿假单胞菌均有抑制作用,实施例3样品的抑菌结果优于对比例1样品。表明本发明实施例3样品对呼吸道常见致病菌有较强的抑菌作用。
以上药效学试验结果表明,本发明实施例3样品经口服给药,对氨水引起的小鼠咳嗽次数明显减少,表明有一定的止咳作用;对小鼠肺内酚红排出量有增加的作用,表明有一定的祛痰作用;体外抑菌实验证明,本发明实施例3样品对金色葡萄球菌、感冒嗜血杆菌、肺炎球菌和铜绿假单胞菌均有一定的抑制作用。综合上述结果认为,本发明实施例3样品具有止咳、祛痰和抑菌作用,且作用效果优于传统方法生产的小儿感冒颗粒(对比例1样品),说明本发明产品制备方法有效提高了有效性。
五、临床试验
1.资料与方法
1.1一般资料
选取120例感冒风热证儿童患者,随机分成2组,即试验组与对照组,每组60例。其中试验组男33例,女27例,年龄17月~8岁,平均(5.2±0.8)岁,病程1~2d;对照组男31例,女29例,年龄18月~8岁,平均(5.5±0.6)岁,病程1~2d。两组患者一般资料比较,差异无统计学意义(P>0.5),具有可比性。
1.2病例选择
上述病例均符合《中医儿科学(2007年第2版)》中小儿感冒风热证的相关标准。临床症状为:高热,恶寒,少汗,鼻塞或流浊涕,喷嚏,咳嗽痰黄,咽喉红肿,燥热口干,舌质红,苔薄黄,脉浮数或指纹浮紫。血常规检查:外周血细胞正常或减少,中性粒细胞减少,淋巴细胞相对增加;排除肺炎、支气管炎。
1.3.治疗方法
试验组采用本发明实施例1样品治疗,口服,一至三岁一次6~12g,四于七岁一次12~18g,八岁一次24g,一日2次,连续服用5日。对照组采用本发明对比例1样品治疗,口服,一至三岁一次6~12g,四于七岁一次12~18g,八岁一次24g,一日2次,连续服用5日。
1.4疗效评价
观察两组治疗效果以及不良反应情况。疗效评价标准为:
(1)痊愈:体温恢复正常,感冒症状全部消除;
(2)显效:体温恢复正常,感冒症状基本消除;
(3)有效:体温有所下降,但未恢复正常,感冒症状大部分消除;
(3)无效:体温未恢复或升高,感冒症状无改善。
1.5统计学处理
采用SPSS 22.0统计软件进行数据处理和分析,同时采用t检验,当P<0.05时,表明差异有统计学意义。
2.结果
2.1不良反应和安全性评价
治疗过程中,两组患者均未出现不良反应。
2.2临床疗效比较
见表7。
表7两组临床疗效比较(例)
3.结论
以上临床试验结果表明,经本发明制备方法生产的实施例1样品在儿童感冒效果上优于传统方法生产的小儿感冒颗粒(对比例1样品),说明其提高了有效性,且服用安全可靠,无不良反应副作用。
以上所述仅为本发明的较佳实施例而已,并不用以限制本发明,凡在本发明的精神和原则之内,所做的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。
Claims (10)
1.一种清热解表中药组合物的制备方法,其特征在于,包括以下步骤:
R1、分别取广藿香、菊花、连翘、大青叶、板蓝根、地黄、地骨皮、白薇、薄荷,净选,干燥;
R2、按处方量称取组分:广藿香、菊花、连翘、大青叶、板蓝根、地黄、地骨皮、白薇、薄荷、石膏;
R3、取广藿香、薄荷提取挥发油,得挥发油,蒸馏后的水溶液留用;
R4、取菊花、连翘加乙醇水溶液浸泡,超声提取,滤过,药渣留用,滤液回收乙醇,得清膏;
R5、取大青叶、地黄、白薇、地骨皮、处方量75~85%的石膏以及步骤R4的药渣,加乙醇水溶液加热回流提取,合并提取液,滤过,滤液回收乙醇后与步骤R3的水溶液、步骤R4的清膏合并,浓缩至60℃相对密度为1.25~1.30的稠膏;
R6、取步骤R3所得的挥发油制备挥发油包合物;
R7、取处方余量石膏、板蓝根粉碎成细粉,灭菌后备用;
R8、取步骤R7的药材细粉与辅料混匀,加入步骤R5的稠膏,混匀,制颗粒,干燥后加入步骤R6得到的挥发油包合物,混匀,制得目标产品。
2.根据权利要求1所述的清热解表中药组合物的制备方法,其特征在于,步骤R3中,所述挥发油提取方法为加5~8倍量水提取挥发油1~3小时。
3.根据权利要求1所述的清热解表中药组合物的制备方法,其特征在于,步骤R4中,所述乙醇水溶液的体积浓度为55~65%,加入量为10~20倍量,浸泡时间为0.5~1小时,超声提取时间为1~2小时。
4.根据权利要求1所述的清热解表中药组合物的制备方法,其特征在于,步骤R5中,所述回流提取为加10~15倍量15-25%v/v乙醇水溶液加热回流提取2次以上,每次1~2小时。
5.根据权利要求1所述的清热解表中药组合物的制备方法,其特征在于,步骤R6中,所述制备挥发油包合物的方法为:取挥发油重量8~10倍量的羟丙基-β-环糊精,加水制成饱和溶液,在40℃~50℃恒温搅拌下,加入挥发油,继续恒温搅拌1~2小时,抽滤,包结物置35~40℃真空干燥,制得挥发油包结物。
6.根据权利要求3所述的清热解表中药组合物的制备方法,其特征在于,步骤R4中,所述乙醇水溶液的体积浓度为60%。
7.根据权利要求4所述的清热解表中药组合物的制备方法,其特征在于,步骤R5中,所述乙醇水溶液的体积浓度为20%。
8.根据权利要求1所述的清热解表中药组合物的制备方法,其特征在于,步骤R8中,所述辅料包括蔗糖、糊精和硬脂酸镁。
9.根据权利要求1所述的清热解表中药组合物的制备方法,其特征在于,按重量份计,各组分处方量为:广藿香75份、菊花75份、连翘75份、大青叶125份、板蓝根75份、地黄75份、地骨皮75份、白薇75份、薄荷50份、石膏125份。
10.一种清热解表中药组合物,其特征在于,由权利要求1-9任一项所述的清热解表中药组合物的制备方法制得。
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