凝胶剂的研究进展及应用概况

凝胶剂是近年来兴起的一种药物新剂型,国外的研究较早、发展较快。国内发展从医院制剂起步,现已有多种凝胶剂获国家批文,展现出凝胶剂更多的优势效用。凝胶剂按基质类型分为亲水性凝胶、亲脂性凝胶和乳剂型凝胶,亲水性凝胶的基质材料目前采用得最多,常见的有卡波姆、壳聚糖、海藻酸钙、羧甲基纤维素钠等。凝胶剂较常采用的给药途径是经皮给药、经口给药、眼部给药、鼻腔给药、阴道给药和直肠给药,不同的给药途径均能收到药物浓度高、作用时间持续的满意效果。随着新技术的应用,还研发出了环境敏感性凝胶、脂质体凝胶、β-环糊精包合物凝胶等新产品,提高了临床疗效。凝胶剂的应用范围还将不断拓宽,前景十分广阔。我国药学研究工作者应在发展化学药凝胶剂的同时,促进中药凝胶剂的发展,将祖国传统医药的精髓发扬光大。

Research Progress and Application of Gel

Gel is a new drug dosage form emerging in recent years.Foreign studies on gel are earlier and have developed quickly.Domestic development starts from hospital preparations and many gels have obtained the state approval.Gel is showing more and more advantages.Gels are divided into hydrophilic gel,lipophilic gel and emulsive gel according to the types of ground substance.At the present,the ground substances of hydrophilic gel are most widely used.More common ground substances include carbomer,chitosan,calcium...