Does naltrexone cure alcoholism or opioid addiction?

No. Alcoholism and drug addiction is a chronic, complex, and multi-factorial disease. There is no magic cure. It should be considered a chronic brain disease. Alcoholism, as with most addictions, is a result of psychosocial AND physiological malfunctions. BOTH the physical aspect and the psychosocial/behavioral/emotional aspect of this disease should be addressed to have the highest chance of obtaining, and maintaining, sobriety.