It has been established that imarant almost halves the antibody titre to ram's erythrocytes in peripheral blood of mice, while under the influence of "fili-saw" and "tribulipil" the antibody titer increases by 1.38-1.50 times. The number of cells in the thymus, bone marrow and lymph nodes decreases by 1.50-1.79 times, and plant remedies raise their level by 1.20-1.41 times.

It was found that infusions of fireweed, "filipil" and "tribulipil" have the ability to repeatedly increase the number of antibody forming cells in the spleen and anti body titer to sheep erythrocytes in the peripheral blood of mice with acute toxic hepatitis.