The nurse expects which medication to be prescribed to maintain abstinence to a patient with an addiction to either alcohol or opioids?

A. Methadone (Methadose) is used as opioid replacement therapy to prevent withdrawal symptoms, not primarily to maintain abstinence. B. Naltrexone (Vivitrol) is an opioid antagonist that helps maintain abstinence in patients with alcohol or opioid dependence by reducing cravings and blocking the euphoric effects of these substances. C. Disulfiram (Antabuse) is used specifically for alcohol dependence; it causes unpleasant reactions if alcohol is consumed but does not address opioid addiction. D. Bromocriptine (Parlodel) is used for Parkinson’s disease and certain endocrine disorders; it is not indicated for maintaining abstinence from alcohol or opioids.