The present invention provides a topical gel pharmaceutical formulation of insecticide suitable for treating an ectoparasite in a mammal, comprising: a) about 0.1-10% by weight of an insecticide; b) at least about 75% by weight of an organic solvent selected from the group consisting of a lower alkyl alcohol, a ketone, a glycol and a mixture thereof, wherein the organic solvent contains at least about 40% by weight of the lower alkyl alcohol; and c) at least one polymer selected from the group consisting of a cellulosic polymer, acrylates, methacrylates, and polyvinyl pyrrolidone. The present gel pharmaceutical formulation preferably contains malathion and optionally contains isopropyl myristate. The present invention further provides a process of preparing as well as a method of treating ectoparasites in a mammal using the same.
本发明提供了一种适用于治疗哺乳动物体内寄生虫的局部凝胶制剂,包括:a)约0.1-10%的
杀虫剂重量;b)至少约75%的有机溶剂,所述有机溶剂选自较低的烷基醇,酮,
乙二醇和其混合物组成的群体,其中所述有机溶剂含有至少约40%的较低的烷基醇重量;c)至少一种聚合物,所述聚合物选自
纤维素聚合物,
丙烯酸酯,
甲基丙烯酸酯和聚
乙烯吡咯烷酮组成的群体。本凝胶制剂首选含有马拉
硫磷,可选择含异
丙酸肉豆蔻酸酯。本发明还提供了一种制备方法以及使用该制剂治疗哺乳动物体内寄生虫的方法。