Doramectin is a new generation of antiparasitic , compared with other commercially available ivermectin products, anti-parasite range of Doramectin is broader, with better effect, and Doramectin can prevent parasite reinfection for a longer valid time, It is the world's best, the most potential anti-parasitic drugs for development veterinary . 

Doramectin as a pesticide can kill all the the internal and external parasites , and is also valid to nematodes, arthropods. At present, Chinese pig industry commonly used insecticide drugs include: parasite drugs: albendazole, levamisole, trichlorfon, Vietnam, hygromycin, ivermectin, avermectin. External parasite drugs: trichlorfon, amitraz, diazinon, permethrin drugs, avermectin, ivermectin. 

Doramectin is a biosynthetic avermectin derived from a mutant strain of Streptomyces avermitilis, supplemented with a cyclohexylcaboxylic acid starting unit. Doramectin was developed as an anthelmintic for internal parasite control. The presence of the cyclohexyl group replacing the sec-butyl moiety affords greater hydrophobicity and longer biological half-life compared to avermectin. Like the other milbemycin/avermectins, it selectively binds to parasite glutamate-gated chloride ion channels and disrupts neurotransmission leading to paralysis and death of the parasite.