The price is frighteningly high. Where is the imported veterinary drug better than the domestic one?

The price of a 100 ml bottle of imported long-acting oxytetracycline is as high as 190 yuan, while the best domestic product is only about 60 yuan. I would like to ask the master, where is the difference between the price so suspended? In other words, where are the imported veterinary drugs better than the domestic ones? Before posting to consult you, I also considered some, I think the difference between them is not the main these aspects: for example, foreign veterinary drugs are produced according to human standards, so the price should be much higher? Is it true that foreign veterinary drugs have to go through clinical trials for many years before mass production, while domestic veterinary drugs can be done in a few months? Is the side effect of foreign veterinary drugs on pigs far lower than that of domestic ones? Does the combination of these aspects explain why imported veterinary drugs are expensive? Thank you. [ts] A little confused at 2009-12-1 14:43 add the following [/ ts] there are reasons for both expensive and cheap, why are imports so expensive? What's the reason? There is a reason for both expensive and cheap, why are imports so expensive? What's the reason? This post was finally edited by pigs who wanted to fly at 22:38 on 2009-12-2. After the same dose of ceftiofur (5 mg/kg) was injected intramuscularly into the muscle, the blood concentration of ceftiofur was 14.8 μ g / mL in China and 28.5 μ g / mL in import). The time to reach the peak is 2.42 h in China and 1.34 h in import. (quoted from an advertisement from a domestic pharmaceutical company) and there are few domestic companies that can achieve this level.