Animal Research And Testing For Human Health Essay

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Relying on animal research and testing to protect and improve human health is not only unsafe, but also expensive, time-consuming, and unreliable. Problems of extrapolation, applying information from animal research to humans, are inevitable when researchers use animal models to study human diseases. Species differences in anatomy, organ structure and function, toxin metabolism, chemical and drug absorption, and mechanisms of DNA repair, can give us inadequate or erroneous information when we attempt to apply animal data to human diseases and drug responses. For example, penicillin is toxic to guinea pigs, aspirin is poisonous to cats, and the recalled diet drug phen-fen caused no heart damage in animals, while it did in humans. And despite millions of animals used and billions of taxpayer dollars spent on cancer research, roughly 95 percent of cancer drugs that enter human clinical testing fail while our incidences of cancer have continued to rise. Stated by Dr. Richard Klausner, former Director of the National Cancer Institute, “We have cured cancer in mice for decades—and it simply didn’t work in humans.”[1] Even chimpanzees, do not accurately predict results in humans. More than 80 HIV vaccines that have proven safe and efficacious in chimpanzees buy all have failed to protect or prove safe in humans.
Statistics show irrefutably that animal-based methods used in preclinical testing to select drugs for human use are unreliable. In fact, studies show that if you flipped

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