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目的制备甲硝唑微囊并对其质量进行评价。方法以明胶和阿拉伯胶为囊材,采用复凝聚法制备甲硝唑微囊,并对微囊包封率和载药量、体外释药性进行考察。结果所制微囊包封率在52%以上,载药量大于30%,12 h时累积释药量达90%以上。结论该制剂制备方法简便易行,质量评价合格。
Objective To prepare metronidazole microcapsules and evaluate their quality. Methods Metronidazole microcapsules were prepared by complex coacervation using gelatin and gum arabic as the encapsulating material. The encapsulation efficiency, drug loading and in vitro release of the microcapsules were investigated. Results The encapsulation efficiency of the prepared microcapsules was over 52% and the drug loading was more than 30%. The cumulative release reached more than 90% at 12 h. Conclusion The preparation method of the preparation is simple and convenient, and the quality evaluation is qualified.