CN110464713B - 奇壬醇抗风湿关节炎的透皮贴剂制备方法 - Google Patents

奇壬醇抗风湿关节炎的透皮贴剂制备方法 Download PDF

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CN110464713B
CN110464713B CN201810443550.9A CN201810443550A CN110464713B CN 110464713 B CN110464713 B CN 110464713B CN 201810443550 A CN201810443550 A CN 201810443550A CN 110464713 B CN110464713 B CN 110464713B
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程志红
郝五四
宋定中
袁杰
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Abstract

本发明公开了一种奇壬醇抗风湿关节炎的透皮贴剂制备方法,奇壬醇抗风湿关节炎的透皮贴剂,包括背衬材料、涂覆在所述的背衬材料上的药物层和覆盖在所述的药物层上的保护层,药物层,包括如下重量百分比的组分:奇壬醇5‑30%,促渗剂0‑5.0%,抗氧化剂0‑1.0%,保湿剂0‑5%,高分子粘性材料余量,本发明可以直接通过皮肤渗透到患病部位,避免了肝脏的首过效应和胃肠道的消除降解,减小了用药剂量;以及对胃肠道的刺激等不良反应,提高药物到达骨关节及软组织等靶部位,有效提高药物的治疗效率。3.用药可以长时间恒速进入体内,减少了给药次数,易于选择给药部位和控制药物作用时间,作用恒定且持久,使用方便。直接作用犯病部位,透皮率高,安全性好。

Description

奇壬醇抗风湿关节炎的透皮贴剂制备方法
技术领域
本发明涉及一种奇壬醇制剂。
背景技术
骨关节炎(arthritis)是由于增龄、肥胖、劳损、创伤、关节先天性异常、关节畸形等诸多因素引起的关节软骨退化损伤、关节边缘和软骨下骨反应性增生,又称骨关节病、退行性关节炎、老年性关节炎、肥大性关节炎等。临床表现为缓慢发展的关节疼痛、压痛、僵硬、关节肿胀、活动受限和关节畸形等,骨关节炎是老年人健康的一大威胁,致残率高达53%。
豨莶草具祛风湿、利关节、解毒等功效,主治风湿痹痛、筋骨无力、四肢麻痹、半身不遂,风疹湿疮等症。主要化学成分为二萜类、倍半萜类、黄酮类、甾醇类、有机酸类等成分。现代研究发现豨莶草抗炎活性成分主要为豨莶二萜类成分(主成分为奇壬醇),奇壬醇口服制剂能明显减少弗氏佐剂引起的SD大鼠足跖肿胀。
奇壬醇为一种具有治疗骨关节炎活性的物质。
通过研究发现,含有奇壬醇的口服制剂,生物利用度高,主要分布到肝脏和小肠,到达骨关节及软组织的药物少。
发明内容
本发明的一种奇壬醇抗风湿关节炎的透皮贴剂制备方法,以克服现有技术存在的缺陷,满足临床应用的需要。
所述的奇壬醇抗风湿关节炎的透皮贴剂,包括背衬材料、涂覆在所述的背衬材料上的药物层和覆盖在所述的药物层上的保护层;
所述的药物层,包括如下重量百分比的组分:
Figure SMS_1
优选的,所述的药物层,包括如下重量百分比的组分:
Figure SMS_2
所述的奇壬醇为商业化产品;
所述的促渗剂选自氮酮;
所述的抗氧化剂选自维生素C;
所述的高分子粘性材料选自脂溶性丙烯酸酯压敏胶,可采用商业化产品;
所述的背衬材料和保护层的材料,均为本领域公知的,为商业化产品;
优选的,每平方厘米药物层含奇壬醇1mg~5mg;
所述的奇壬醇抗风湿关节炎的透皮贴剂的制备方法,包括如下步骤:
(1)将所述的奇壬醇、促渗剂、抗氧化剂和保湿剂溶解于有机溶剂中,加入高分子粘性材料混合均匀,获得胶浆;
所述的有机溶剂优选乙酸乙酯或丙酮;
(2)将所述的胶浆涂于背衬材料,加热烘干,再覆盖上保护层;
(3)按需要尺寸切割,包装,即得所述的奇壬醇抗风湿关节炎的透皮贴剂。
本发明的优点:
可以直接通过皮肤渗透到患病部位,避免了肝脏的首过效应和胃肠道的消除降解,减小了用药剂量;以及对胃肠道的刺激等不良反应,提高药物到达骨关节及软组织等靶部位,有效提高药物的治疗效率。用药可以长时间恒速进入体内,减少了给药次数,易于选择给药部位和控制药物作用时间,作用恒定且持久,使用方便。直接作用犯病部位,透皮率高,安全性好。
具体实施方式
实施例1
处方:(重量百分比)
Figure SMS_3
制备方法:
奇壬醇、氮酮、维生素C和甘油解于乙酸乙酯中,加入脂溶性丙烯酸酯压敏胶混合均匀。
将混匀的胶浆涂于背衬材料,每平方厘米含奇壬醇1.5mg,加热烘干,再覆盖上保护层。
按需要尺寸切割,包装,即得所述的奇壬醇抗风湿关节炎的透皮贴剂。
实施例2
处方:(重量百分比)
Figure SMS_4
制备方法同实施例1,每平方厘米药物层含奇壬醇2.5mg。
实施例3
处方:(重量)
Figure SMS_5
制备方法,同实施例1,每平方厘米含奇壬醇4.0mg。
实施例4
透皮吸收实验:
取SD大鼠,采用脱毛膏去除背部毛,处死,立即剪下背部皮肤,剔除皮下组织和脂肪,剪成适当大小,浸在生理盐水中,采用改良Franz立式单式室扩散池,通过RYJ-20CV型药物透皮扩散试验仪,将实施例1-3制备的脂质体水透皮贴剂精密取1.0g置于供给室,向接收室中加入9mL接收液,接收液为PBS缓冲液(0.01M,pH7.4)。设定恒温水浴为36.5℃,以300r/min磁力搅拌。分别于0.5、1、2、4、8、12h取0.3mL接收液,同时补充0.3mL PBS缓冲液,经0.22μm滤膜过滤,通过HPLC检测药物浓度并计算12h内累积透过率如表1所示。
表1 不同时间奇壬醇累积透过率(n=3)
Figure SMS_6
从表1结果可以看出,本发明具有较高的总透过率,其中实例2在12小时总透过率达30%以上,本发明能够以一定速率缓慢释放,从而在皮肤内形成恒定的血药浓度,有利于延长药物的治疗时间。
实施例5抑制足跖肿胀试验
采用弗氏完全佐剂引起的SD大鼠足跖肿胀模型,分为空白组,模型组,口服给药组(每天剂量100mg/kg,约20-30mg/只),实例1给药组(每天剂量3mg/只),实例2给药组(每天剂量5mg/只),实例3给药组(每天剂量8mg/只)。每组6只,每天更换药一次,在给药0d,3d,5d,10d,15d用足容积测量仪测量记录足跖体积并计算肿胀度,结果如下表2所示。
表2 抑制大鼠足跖肿胀实验结果(n=6)
Figure SMS_7
从表2结果可以发现奇壬醇制剂具有较好的抗炎效果,能很好的抑制弗氏佐剂引起SD大鼠的足跖肿胀,其中透皮贴剂有效剂量是口服制剂有效剂量的10%-30%,且透皮贴剂组疗效高于口服组疗效,有统计学差异。且口服剂量组有体重减轻现象,精神活动状态明显低于透皮给药组,说明透皮给药相对口服给药能明显降低药物的毒副作用与不良反应。实例1-3组相比,发现实例2中制剂抗炎效果最好。
实施例6
用ELISA试剂盒检测大鼠血清中致炎因子TNF–α和IL-1β的变化。
表3 各组大鼠血清中IL-1β含量
Figure SMS_8
Figure SMS_9
表4 各组大鼠血清中TNF-α含量
Figure SMS_10
Figure SMS_11
从表3,表4结果可知:模型组与空白组相比,大鼠血清TNF–α和IL-1β含量显著升高,差异有统计学意义(P<0.01),说明造模成功。奇壬醇口服给药组和透皮给药组与模型组相比:大鼠血清中TNF–α和IL-1β含量都有明显降低,差异有统计学意义,说明奇壬醇具有很好的抗炎作用。透皮给药组实例2与口服给药组相比,大鼠血清中TNF–α和IL-1β含量相对偏低,说明实例2制剂透皮给药疗效强于口服给药组。

Claims (3)

1.奇壬醇抗风湿关节炎的透皮贴剂,其特征在于,包括背衬材料、涂覆在所述的背衬材料上的药物层和覆盖在所述的药物层上的保护层;所述的药物层,由如下重量百分比的组分组成:
Figure FDA0004118432310000011
所述的促渗剂选自氮酮,所述的抗氧化剂选自维生素C,所述的高分子粘性材料选自脂溶性丙烯酸酯压敏胶;
每平方厘米药物层含奇壬醇1mg~5mg。
2.根据权利要求1所述的奇壬醇抗风湿关节炎的透皮贴剂的制备方法,其特征在于,包括如下步骤:
将所述的奇壬醇、促渗剂、抗氧化剂和保湿剂溶解于有机溶剂中,加入高分子粘性材料混合均匀,获得胶浆;
将所述的胶浆涂于背衬材料,加热烘干,再覆盖上保护层;
按需要尺寸切割,包装,即得所述的奇壬醇抗风湿关节炎的透皮贴剂。
3.根据权利要求2所述的方法,其特征在于,所述的有机溶剂为乙酸乙酯或丙酮。
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