As a result of this, nine out of every ten trial medicines that look safe and appear to be effective on animals, fail when they are given to humans. Because animals don’t react the same way as humans, not only do the failed tests delay medical progress, but also they are a waste of animal’s lives, and a waste of money that is spent into the research and tests. Animals have different anatomic, cellular, and metabolic structures than humans have. If a new product is passed just because it is safe on animals and isn’t on humans, that could be a very dangerous situation. One instance when this occurred was in 1950 when a sleeping pill worked on animals but when given to humans it caused 10,000 babies to be born with severe birth defects. Another time, a drug for arthritis was safe on mice but when administered to humans caused 27,000 heart attacks and sudden cardiac deaths. Animal testing can make researchers oversea potential cures and treatments. Some substances that are harmful to animals, are helpful to humans. For example, aspirin is dangerous to some animals. Arthur Allen says, “A source of human suffering may be the dozens of promising drugs that get shelved when they cause problems in animals that may not be relevant for humans.” (“Of Mice or Men: The Problems with Animal Testing”). Of all the medicines that pass animal trials and are ready for human …show more content…
New cancer drugs made the cancer survival rate go up about fifty percent. Due to animal testing, we now have a better molecular and genetic understanding of tumor biology. Because of this better understanding, it leads to treatments that set out to specifically kill cancer cells. Medicines to reduce heart disease and strokes that were tested on animals, save over one million American lives each year. Animal testing has made medical progress in Alzheimer's disease, anesthetics, antidepressants, asthma, autism, blindness, bone and joint disease, brain injury, breast cancer, cervical cancer, deafness, diabetes, Hepatitis B, ovarian cancer, prostate cancer, smallpox, and strokes. Although these advancements are good, animals had to die and suffer during these tests when there are alternate methods of testing medication. Over one hundred fifty million animals are killed for