Which medication is used for opiate overdose?

Narcan, or naloxone, is the medication specifically designed to reverse opiate overdoses. It functions as an opioid receptor antagonist, meaning it can effectively block the effects of opioids in the brain. When administered, naloxone displaces the opioids from the receptors, reversing respiratory depression and other life-threatening effects caused by an overdose. Its rapid action allows for prompt treatment in emergency situations, making it a critical tool in managing opioid overdose scenarios.

In contrast, methadone is a long-acting opioid often used in addiction treatment but is not suitable for overdose reversal. Naltrexone is used as a maintenance therapy for opioid dependence, as it also blocks opioid effects but does not provide immediate reversal needed in an overdose situation. Atropine is an anticholinergic medication used primarily in the treatment of bradycardia and does not have a role in managing opioid overdoses. Thus, naloxone stands out as the preferred and effective treatment for these life-threatening incidents.