White or yellowish crystalline powder, soluble in methanol, esters and aromatic hydrocarbons, insoluble in water. Ivermectin (ivermectin) is an antibiotic drug, which has repellent activity against nematodes, insects and mites. The injections and tablets made from ivermectin are mainly used for the treatment of gastrointestinal nematodiasis, cattle maggot, skin maggot, sheep nose maggot, pig and sheep scabies. In addition, ivermectin can also be used to treat parasitic nematodes (such as Ascaris lumbricoides, pulmonary nematodes, etc.) in poultry. It can also be used to kill mites, Plutella xylostella, Pieris rapae, leaf miner, Psylla xylophilus, nematodes and so on. The prominent characteristics of the drug are: mild side effects, a drug at the same time drive and kill a variety of parasites in vivo and in vitro.