Under the psychotropic (psychopharmacological) drugs means drugs that selectively affect the complex mental functions of man that govern his emotional state, motivation, behavior, and psychomotor activity. Drugs in this group is mainly for the treatment and prevention of mental disorders and somatic diseases. To psychotropic drugs include antipsychotics, tranquilizers, sedatives, antidepressants, normotimicheskie means (drugs lithium), means that stimulate the central nervous system, nootropic drugs. Psychotropic drugs are well penetrate the blood-brain barrier and have a general or selective effect on the function of the CNS. Used to treat mental disorders and somatic diseases.