PROBLEM TO BE SOLVED: To provide a preparation that can be applied to human, animal and clothes, is soluble in water and can be favourably rinsed with water even when not using a pyrethroid compound such as phenothrin or the like, and has a high effect of exterminating sanitary insect pests such as louse, tick, flea and the like.;SOLUTION: The sanitary insect pest expellent includes an anionic surfactant, an amphoteric surfactant and water and has a blending ratio of the anionic surfactant and the amphoteric surfactant of the anionic surfactant/the amphoteric surfactant=12/1 to 1/33. The anionic surfactant is at least one kind selected from among a carboxylic acid type, a sulfonic acid type, a sulfate type and a phosphate type and the amphoteric surfactant is at least one kind selected from among an amine oxide type and a betaine type.;COPYRIGHT: (C)2014,JPO&INPIT
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