Licopid is an immunomodulator of the last generation containing full synthetic analogue of the natural peptidoglycan (GMDP or glucosaminylmuramyldipeptide), being the minimal biologically active fragment of bacterial cell wall structure. Once in the body, Licopid imitates the natural discovery process of peptidoglycan fragments of bacteria. Therefore, effect of this drug is as close as possible to the natural immunoregulation process implemented in the body under the effect of pathogenic bacteria.