Lysergic acid amide in the same doses such as MLK leads Observations Solms to lethargy and development of sleep, hallucinations do not show up, and when the dose is increased. Thus, as the withdrawal of ethyl groups disappears hallucinogenic effects and growing apathy, weakness, abulia. The question of the meaning of the LDK research and its derivatives is considered in the final chapter of the psychotomimetic media section. REFERENCES 1. VM Banshchikov Stolyarov and GV - J. neuropathy. Psychiatrist., 1959. number 2, pp. 222.