Naltrexone HCL 3mg tablets are used to help manage addiction by blocking the effects of opioids and reducing the desire to consume alcohol. It works by binding to opioid receptors in the brain, preventing the pleasurable effects of drugs like heroin and reducing cravings for alcohol. Naltrexone is typically used as part of a comprehensive treatment plan that includes counseling and support. It does not cause dependence and is taken daily or as prescribed by a healthcare provider. Common side effects may include nausea, headache, dizziness, and fatigue. It’s important to take Naltrexone under medical supervision to ensure safe and effective treatment, especially if there are any underlying health concerns.