Ivermectin is an antiparasitic medication used in humans to treat infections such as strongyloidiasis (intestinal worms), onchocerciasis (river blindness), scabies, lice, and other parasitic infestations. The dose depends on the condition being treated and body weight, but it is commonly given as a single oral dose of about 150–200 micrograms per kilogram, sometimes repeated after a specific interval.