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<title>Overdose Reversal Medications | National Institute on Drug Abuse (NIDA)</title>
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Overdose Reversal Medications
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<ul><li>Overdose reversal medications are safe and effective life-saving tools that can be given to someone experiencing a drug overdose. Current overdose reversal medications— including <a href="/publications/drugfacts/naloxone" data-entity-type="node" data-entity-uuid="085728f1-1024-4c4c-9efd-f939ac5065ae" data-entity-substitution="canonical">naloxone</a> (Narcan<sup>®</sup>, Kloxxado<sup>®</sup>, Zimhi<sup>®</sup>, ReVive<sup>®</sup>) and nalmefene (Opvee<sup>®</sup>)—are approved to reverse overdoses caused by <a href="/node/20240" data-entity-type="node" data-entity-uuid="0815f5ea-b1c3-4862-97e1-0fcbccb9a7d9" data-entity-substitution="canonical">opioids</a> like <a href="/research-topics/fentanyl" data-entity-type="node" data-entity-uuid="b754d032-76e9-4a4e-947f-7f5adfd15a9e" data-entity-substitution="canonical">fentanyl</a>, though NIDA supports the development of new medications to reverse overdoses caused by other drugs. Nasal spray versions of naloxone and nalmefene are available and can be carried and administered by anyone. Two formulations of naloxone nasal spray are available without a prescription.</li><li>As a <a href="/research-topics/harm-reduction" data-entity-type="node" data-entity-uuid="d8ed3bbd-a102-4d4b-b5a4-815d8b569475" data-entity-substitution="canonical">harm reduction</a> tool, overdose reversal medications play a critical role in a science-based approach to the drug <a href="/node/18622" data-entity-type="node" data-entity-uuid="6437f58a-c8c5-42a5-896f-8317c7207062" data-entity-substitution="canonical">overdose crisis</a>. Overdose education and naloxone distribution programs have been shown in studies to be effective in preventing overdose deaths.<a href="#references"><sup>1, 2, 3</sup></a> By saving lives, overdose reversal medications can give people who use drugs more opportunities to access services they may need, such as treatment and recovery support for people with substance use disorders.</li><li>Certain naloxone and nalmefene formulations were developed with the <a href="/node/21261" data-entity-type="node" data-entity-uuid="e6fa1bf3-ffda-4a81-9eb7-a21900c8e420" data-entity-substitution="canonical">support of NIDA</a>. NIDA continues to support development of new and improved overdose reversal medications. These include tools that last longer, are more user-friendly, and reverse overdoses caused by drugs other than opioids and by combinations of multiple drugs. NIDA also funds research into more effective ways to detect and respond to overdose, distribute overdose reversal medications to the people who need them, and to prevent overdoses through education and harm reduction.&nbsp;</li></ul></div>
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<div><h3>Saving Lives with Peer Support</h3><p>Learn how peer support specialists like Chetwyn “Arrow” Archer help others connect with naloxone to prevent overdose deaths.&nbsp;</p><div class="align-center image-medium">
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Federal study findings help understand effects of expanding access to treatment for opioid use disorder
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Find More Resources on Overdose Reversal Medications
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<div><ul><li>Learn <a href="https://www.cdc.gov/stop-overdose/caring/naloxone.html">how and when to use naloxone</a> from the Centers for Disease Control and Prevention.</li><li>Explore how overdose reversal medications play a role in the U.S. Department of Health and Human Services <a href="https://www.hhs.gov/overdose-prevention/harm-reduction">Overdose Prevention Strategy</a>.</li><li>Read more about <a href="https://www.fda.gov/drugs/postmarket-drug-safety-information-patients-and-providers/information-about-naloxone-and-nalmefene">approval and regulation of overdose reversal medications</a> at the U.S. Food and Drug Administration.</li><li>Find more information about <a href="https://www.samhsa.gov/resource/ebp/overdose-prevention-naloxone-manual">naloxone</a> from the Substance Abuse and Mental Health Services Administration.</li></ul></div>
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<div><ol><li>Walley, A.Y., et al., <a href="https://pubmed.ncbi.nlm.nih.gov/23372174/">Opioid overdose rates and implementation of overdose education and nasal naloxone distribution in Massachusetts: interrupted time series analysis</a>. <em>BMJ</em>, 2013. 346 (jan30 5): p. f174-f174.</li><li>Chichester K, Sisson ML, Schiavon SP, et al. <a href="https://pubmed.ncbi.nlm.nih.gov/32187113/">Naloxone training from nonmedical personnel: Benefits before, during, and after overdose events</a>. <em>J Addict Med</em>. 2020;14(5):e220-e225. doi:10.1097/ADM.0000000000000645</li><li>Siegler A, Huxley-Reicher Z, Maldjian L, et al. <a href="https://pubmed.ncbi.nlm.nih.gov/28772172/">Naloxone use among overdose prevention trainees in New York City: A longitudinal cohort study</a>. <em>Drug Alcohol Depend</em>. 2017;179:124-130. doi:10.1016/j.drugalcdep.2017.06.029</li></ol></div>
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