[Effect of dimedrol, diazoline, diprazin and ethysine on formation of the primary immune response]

Tests were conducted on mice of the CBA line, immunized through a single intraperitoneal administration of 0.5 ml of a 5% sheep erythrocytes suspension. Antihistaminic agents were introduced by the intraperitoneal route in a dose of 5 mg/kg, first at one time and then repeatedly at various intervals with respect to the initial immunization benadryl and diazoline, when administered in a single dose to mice 24 hours after immunization activated the primary immune response to sheep erythrocytes, whereas phenergan and ethisine manifested merely a tendency toward activation of the immunogenesis. The drugs under study failed to have any significant effect on the titres of serumal hemolysines and hemaglutinines.