June 10, 2013 For patients managing cancer and other chronic health issues, painkillers such as morphine and Vicodin are often essential for pain relief. The body's natural tendency to develop tolerance to these medications, however, often requires patients to take higher doses -- increasing risks of harmful side effects and dependency. Now, new research from the University of Michigan Health System and a major pharmaceutical company has identified a novel approach to moderate and severe pain therapy that paves the way for lower dosage painkillers. The findings appear in Proceedings of the National Academy of Sciences. Drugs such as hydrocodone (the main ingredient of Vicodin) and oxycodone (Oxycontin) are often the best options for the treatment of moderate to severe pain for patients facing medical conditions ranging from a wisdom tooth extraction to cancer. The drugs bind to specific molecules (opioid receptors) on nerve cells in the brain and spinal cord to prevent the feeling of pain. "We have for the first time discovered compounds that bind to an alternative site on the nerve opioid receptors and that have significant potential to enhance the drug's positive impact without increasing negative side effects," says co-author John Traynor, Ph.D., professor of pharmacology … Continue reading
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