I agree with the scientific or commercial animals testing, because it makes us enable to study the side effects of the drug, and save more lives. The followings are the basis of my opinion.

First, to prevent the diseases, we developed a treatment method through the animal testing, that makes it possible to take advantage of more of life. Through some of the animal testing carried out in the past, we discovered many features of various diseases, also found its treatment, and we could save many lives. For example, experiments on animals were the major contributions to develop the vaccines and treatment drugs for deadly diseases such as cancer, polio and tuberculosis.

Secondly, there is no realistic alternative to replace animal testing, at the present time.

Some people say that study of the corpse and patient-observation might be able to replace the animal testing, but it doesn't guarantee the results of the testing.

Third, there is a law relating to animal testing to ensures the rights of animals, which compensates the fact that pains that animals receive are the most problematic in animal testing.Thanks for reading