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The ongoing opioid epidemic in the U.S. kills tens of thousands of people every year.
Naloxone, sold under the brand name Narcan, has saved countless lives by reversing opioid overdoses. But new and more powerful opioids keep appearing, and first responders are finding it increasingly difficult to revive people who overdose. Now, researchers have found an approach that could extend naloxone's lifesaving power, even in the face of ever-more-dangerous opioids.
A team of researchers from Washington University School of Medicine in St. Louis, Stanford University and the University of Florida have identified potential drugs that make naloxone more potent and longer lasting, capable of reversing the effects of opioids in mice at low doses without worsening withdrawal symptoms. The study is published July 3 in Nature .
Naloxone is a lifesaver, but it's not a miracle drug; it has limitations. Many people who overdose on opioids need more than one dose of naloxone before they are out of danger. This study is a proof of concept that we can make naloxone work better -; last longer and be more potent -; by giving it in combination with a molecule that influences the responses of the opioid receptor.
" Susruta Majumdar, PhD, co-senior author, professor of anesthesiology at Washington University Opioids such as oxycodone and fentanyl work by slipping inside a pocket on the opioid receptor, which is found primarily on neurons in the brain. The presence of opioids activates the receptor, sett.
