Lange K, Nielsen A O, Jensen O, Graudal C
Acta Derm Venereol. 1981;61(1):91-2.
112 patients with head lice were treated with a shampoo containing pyrethrins. All were treated twice with an interval of one week. At examination immediately before the second treatment, 6 patients had small, newly hatched lice, and one patient had both small and mature lice--probably due to reinfestation. This patient was lice-free after the third treatment, the other patients after the second treatment. It is concluded that pyrethrins are highly effective against head lice and have the advantages of a low toxicity to mammals and a short contact time.
112名头虱患者接受了含有除虫菊酯的洗发水治疗。所有患者均接受两次治疗，间隔一周。在第二次治疗前立即检查时，6名患者有新孵化的小虱子，1名患者既有小虱子又有成熟虱子——可能是再次感染所致。该患者在第三次治疗后无虱，其他患者在第二次治疗后无虱。结论是除虫菊酯对头虱非常有效，具有对哺乳动物毒性低和接触时间短的优点。
