The test sample number 914 arriving found to be effective in killing pathogens such as syphilis. However, side effects, less people are acceptable. This substance is called Neoarsphenamine And produce to the market for a trade that Neosalvarsan drug discovery, she had syphilis, would have more chance of survival, and is regarded as the world's first antibiotic. But was phased out when the drug Penicillin (Penicillin) at a later time.