SUMMARY
The aim of our research was to determine the character of the role and functional state of separate indexesof the immune system in blood of guinea-pigs under the conditions of the development of experimental bronchialasthma (BA ) and estimation of thiotriazoline influence on them. Decreasing of T-lymphocytes, stimulation of humorallink of immunity, namely increasing of B-lymphocytes and immunoglobulins of A, M and G, elevation of circulatoryimmune complexes and slump of complement blood plasma activity had been determined in this research. Immunecorrecting action of thiotriazoline upon the pointed out indices in case of BA is revealed.