Mr. Pechsniff's horse? (Psychodynamics in compulsive drug use).
D000339:Affect; D003192:Compulsive Behavior; D003674:Defense Mechanisms; D006801:Humans; D011574:Psychoanalytic Theory; D011575:Psychoanalytic Therapy; D012043:Regression, Psychology; D019966:Substance-Related Disorders / Q000523:psychology* / Q000628:therapy