Long-acting terramycin injection and preparation method thereof

The invention relates to a long-acting terramycin injection and a preparation method thereof. The injection comprises, by weight, 10-40 parts of terramycin, 10-40 parts of dimethyl formamide, 5-10 parts of ethanolamine, 10-30 parts of propylene glycol, 1-2 parts of sodium formaldehyde thiosulfate, 20-30 parts of anhydrous ethanol, 10-20 parts of tween-80, 1-8 parts of a sustained release agent and 1-5 parts of water for injection. The long-acting terramycin injection has the advantages of scientific compatibility, advanced technology, lasting drug effect, reasonable composition, wide effect and use safety, is a long-acting preparation with small irritation, and is mainly used for preventing and treating infections induced by Gram-negative bacteria, Gram-positive bacteria, spirochetes, actinomyces, mycoplasmas, rickettsiae and other protozoan.