The present invention provides a pharmaceutical composition that includes a neutral carrier treated with energy proportional to biopotential of human brain or nervous tissue. Preferably, the neutral carrier is obtained from initial liquid neutral carrier which after the energy treatment is subjected to multiple consecutive dilution combined with external shaking of each dilution in accordance with homeopathic technology. Preferably, the initial liquid carrier is treated with electrical current by passing electricity through at least two electrodes, which current is proportional in amplitude to biopotential of human brain.A variety of methods of treatment is provided, including methods of treatment of psychosis, depression, attention deficit disorder, and other conditions of central nervous system, including a number of psychiatric conditions.A device for passing electricity through the neutral liquid carrier is also provided.