Opioid Antagonists

Opioid antagonists are a therapeutic class of medications that competitively bind to opioid receptors—predominantly mu, and to a lesser extent kappa and delta receptors—without triggering intrinsic receptor activation By displacing or preventing the binding of endogenous or exogenous opioid agonists, these agents reverse or prevent opioid-mediated physiological effects, notably respiratory depression and euphoria Centrally active members of this class, such as naloxone and nalmefene, are primari...

Opioid antagonists are a therapeutic class of medications that competitively bind to opioid receptors—predominantly mu, and to a lesser extent kappa and delta receptors—without triggering intrinsic receptor activation

By displacing or preventing the binding of endogenous or exogenous opioid agonists, these agents reverse or prevent opioid-mediated physiological effects, notably respiratory depression and euphoria Centrally active members of this class, such as naloxone and nalmefene, are primarily indicated for the rapid reversal of acute opioid overdose, while agents like naltrexone are utilized for the management and relapse prevention of opioid use disorder and alcohol use disorder

Centrally active members of this class, such as naloxone and nalmefene, are primarily indicated for the rapid reversal of acute opioid overdose, while agents like naltrexone are utilized for the management and relapse prevention of opioid use disorder and alcohol use disorder Additionally, peripherally acting mu-opioid receptor antagonists are used to treat opioid-induced constipation by blocking enteric receptors without reversing central analgesia