The study of features of the nervous system functioning with a complex of physiological methods in adolescents using inhalants has detected the significant functional asymmetry of hemispheres, imbalance and lability of nervous processes, domination of medium-weak and weak response of the nervous system, low speed of response, poor dynamics of nervous processes, disturbance of regulation and control of psychic activity. It has been proposed to use assessment of the functional status of the nervous system during inhalant in medical-diagnostic practice for development of individual correction programs.