L-Lys-L-Glu dipeptide is proposed for use in medicine for preparation of a drug capable of stimulating repair processes. According to the invention, the pharmaceutical peptide preparation capable of stimulating regeneration consists of pharmaceutically admissible carrier and effective quantity of dipeptide as an active part, which is a combination of, L-lysil-L-glutamic acid or its salts. The pharmaceutical peptide preparation is proposed for parenteral, intranasal oral and local application. According to the invention, the method stimulating regeneration consists of prophylactic and/or treatment injections of the drug in the dose of 0.01-100 .mu.kg per per 1 kg of weight, at least once a day during a period necessary for obtaining a therapeutic effect.