Naltrexone is not a cure nor therapy for the treatment of psychological drug addiction. Naltrexone is not a sedative or tranquilizer, nor neuroleptic medicine nor antidepressant. However, it has a significant role in the treatment of psychical addiction of opiates. The thing is that when the opioid receptors are certainly blocked and well guarded by a powerful guard called Naltrexone, a person becomes more sure of himself. He is more peaceful and it is much easier for him to face the reality of this complicated world. He experience accidental encounters with drug addicts or drug dealers far easier as well as e other moments that might remind him about the past. Thus, when a person has the Naltrexone protection in the organism, he is much less disturbing regarding his future. He has less cravings, the need and desire for taking drugs. Night's sleep is much better, as well as appetite and mood. Depression occurs far less and anxiety, nervousness and aggressiveness are much less frequent. Relationship with the surroundings becomes more convivial. Communication, openness, interest and even infatuation improves. A person becomes much sincere and more emotional when his mind is freed from bad thoughts of the addiction past.