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opioid antagonist
opioid antagonist An opioid antagonist is a substance that counteracts opioid effects by competing at opioid receptors, such as the mu receptor.
An opioid antagonist is a substance that counteracts opioid effects by competing at opioid receptors, such as the mu receptor. In the packet, naloxone is an opioid antagonist used for rapid reversal of opioid overdose.