Post-Marketing Surveillance Study of Nalmefene Hydrochloride Hydrate in Patients with Alcohol Dependence

Inclusion Criteria: * Clinical diagnosis of Alcohol Dependence * Must agree to follow-up during the first year of prescription and publication of survey results * Patients whose goal of treatment for Alcohol Dependence is to reduce alcohol consumption * Patients receiving psychosocial treatment aiming to promote treatment adherence and reduction of alcohol consumption * Patients who have chronic heavy drinking * Patients who have confirmed that they are willing to receive treatment to reduce their alcohol consumption Exclusion Criteria: * Patients who has ever been treated with nalmefene hydrochloride hydrate * Patients who are contraindicated