I don't trust this kind of medicine. I usually take either the original or an analogue. There are, of course, many concerns. Since complex living cells and other biological sources are used to make high-molecular-weight biological pharmaceuticals, it is impossible to create a completely identical molecule for a biosimilar, but it is possible to make a very similar one with almost identical properties. I know that AccuBioTech was able to do this and conduct accu test to consolidate the results. I am pleased with this progress.