Compound ivermectin injection and preparation method thereof

The present invention discloses a composing prescription of a compound ivermectin injection and a preparation method of the compound ivermectin injection, and belongs to the veterinary medicine technology. The compound ivermectin injection comprises main drugs, a solvent and an antioxidant so as to prepare the stable high-concentration compound ivermectin injection. The injection has characteristics of advanced technology, good stability, broad spectrum, high efficiency, low irritation on the injected site, easy use, and clinical efficiency superior to the single-formula injection. According to the present invention, the raw materials comprise 0.5-5.0% of ivermectin, 2-20.0% of mebendazole, 0.5-5.0% of levamisole hydrochloride, 0.1-1% of the antioxidant, and the balance of the solvent, wherein the antioxidant is one or a mixture selected from thiourea, L-cysteamine hydrochloride, vitamin C, ethylenediamine, sodium hydrogen sulfite, anhydrous sodium sulfite, sodium formaldehydesulfoxylate dihydrate, sodium metabisulfite and the like, and the solvent is one or a mixture selected from propylene glycol, ethanol, glycerol, glycerol formal, dimethylformamide, dimethylacetamide, 2-pyrrolidone and the like.