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Social, economic, legal, medical and/or psychological measures aimed at minimizing the use of potentially addicting substances, lowering the dependence risk in susceptible individuals, or minimizing other adverse consequences of psychoactive substance use. Primary prevention consists of attempts to reduce the incidence of addictive diseases and related problems in a general population. Secondary prevention aims to achieve early detection, diagnosis and treatment of affected individuals. Tertiary prevention seeks to diminish the incidence of complications of addictive diseases.