克催玛汝或译克霉挫、克霉乐（英语：Clotrimazole），品牌名称为抗癣乳膏（Canesten），是一种杀真菌药，适用于念珠菌症、鹅口疮及癣等真菌感染疾病，尤其常用来治疗香港脚和股癣。

Clotrimazole (brand name Canesten or Lotrimin) is an antifungal medication commonly used in the treatment of fungal infections (of both humans and other animals) such as vaginal yeast infections, oral thrush, and ringworm. It is also used to treat athlete's foot and jock itch. It is on the World Health Organization's List of Essential Medicines, the most important medications needed in a basic health system.