In recent times, the health and medicine sector is growing day by day. There is a lot of improvement that we can see in this field. Earlier there was no such allergen test that were performed in order to know if some people can have allergies with the specific medicines, but now scientists are doing their best to make such products which can be used by everyone without having negative effects. But in this process, they use animals to test their products and when these medicines react negatively then sometimes the animals suffer a lot.