Compound oxytetracycline injection and preparation method thereof

The invention discloses compound oxytetracycline injection and a preparation method, particularly relates to compound injection applied to animals. Every 100ml of injection comprises the following components: 5-23g of oxytetracycline, 1-5g of ketoprofen, 30-80ml of an organic slvent, 0.2-2g of an antioxidant, 1.8-8g of a complexing agent, 0.2-1g of a pain killer, 1-7ml of a pH regulator and the balance of injection water. The oxytetracycline and the ketoprofen are prepared into the compound preparation, wherein the oxytetracycline is wide-spectrum antibiotics, and the ketoprofen is an antipyretic-analgesic anti-inflammatory agent, so that the matched using effect is good. The oxytetracycline and the ketoprofen are injection dosage forms; in the past, when the drug is used on a pig, oxytetracycline is injected once on the pig and then the ketoprofen is injected once, however, at present, the compound injection only needs to inject once, so that the pains of the pig are reduced, the site injection work of veterinarians is performed in a more facilitated manner, and the working efficiency of the veterinarians is improved. Due to the use of the compound injection, the cost of packaging, transporting and the like of a medicament bottle are reduced, and the cost is reduced.