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Naltrexone Mechanism

Naltrexone (Revia®) is a prescription medication licensed to help adults stop abusing alcohol or opioid medications. It comes as a tablet that is taken once a day.
When used for opiate dependence, naltrexone's mechanism of action includes competing with opioids for receptors. The drug produces no effects when it binds to opioid receptors. However, it prevents other opioid medicines from also binding to the receptors, thus blocking the actions of these other opioid medicines.
It is not exactly known how naltrexone works to treat alcoholism. Because this drug blocks opioid receptors, it may also help prevent some of the rewarding effects of alcohol use.
(Click Naltrexone for a more in-depth look at the possible benefits of this drug, including information on how it works, potential side effects, and dosing instructions.)
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