Naltrexone is beneficial for individuals who have ceased opioid use and are seeking to maintain abstinence. It is also prescribed to individuals struggling with alcohol dependence to help reduce heavy drinking days. However, it is crucial that patients are opioid-free for a minimum of 7 to 10 days before starting naltrexone to avoid precipitating withdrawal symptoms. It is not suitable for everyone, and its use should be carefully evaluated by healthcare professionals.