Dispersion preparation of suspension system of Zhongcopeter Disperser veterinary drug
Conventional drug dosage forms have the problem that the effect of * * fluctuates greatly when * * and preventing * * infectious * *, and it requires long-term and repeated administration. In order to overcome the above problems, in recent years, the long-acting sustained-release dosage forms for the prevention of livestock * * infection have made great progress. The reported long-acting sustained-release dosage forms mainly include: preparation of precursor modified drugs that are difficult to absorb, suspension of oil suspension, emulsion of water in oil and other long-acting preparations that can achieve slow release effect.