In tolerance reactions to Rheomacrodes. Apropos of 3 cases

: Three cases of reactions of intolerance to Rheomacrodex were observed during these last four years in our Department, and this led us to attempt to sum up their exact nature and in particular the possibility of an immuno-allergic orgin. From the clinical standpoint, the symptomatology is dominated by the combination of abrupt collapse associated with Quincke's edema in two cases, and with bronchospasm in the third. The course was rapidly favourable under respiratory and circulatory emergency resuscitation. The immuno-allergic enquiry carried out in one case, did not enable one to demonstrate the responsibility of an antigen-antibody reaction. Analysis of the different works appeared on this subject, in particular those of the Swedish school, of W. RICHTER et col., did not enable one to pick out with any certainty the responsibility of an antigen-antibody conflict in the genesis of these reactions.