The respiratory system has a number of protective mechanisms defending it from the influences of harmful substances and microorganisms. However as a result of failure in the work of protective mechanisms certain illnesses develop such as a bronchitis, tracheitises, bronchial asthma and other diseases of the respiratory ways.

Respiratory organs are plentifully supplied by vessels. As a result uptake of peptide bioregulators through inhalation occurs very quickly, rendering powerful physiological effect on the immune system and on the inflammation area in the mucous membranes of respiratory ways.