THE SYMPATHETIC SYSTEM 



certain amount of caution. Suprarenalin and thyroid 

 also require a certain amount of supervision. In spite of 

 it all, the toxicity of thyroid has been greatly exaggerated. 

 As regards suprarenalin (next to which we must place 

 pituitrin) it is only toxic when injected. Suprarenalin 

 and pituitrin can be given by mouth in large doses without 

 any danger. 



If organo therapy in general has no contraindications, 

 it is perfectly evident that each individual product has 

 contraindications which result from some of its actions 

 and is, therefore, closely allied to the condition of the 

 patient at the time. To administer thyroid extract in 

 therapeutic doses to a normal individual with a normally 

 functionating thyroid does not cause much inconvenience; 

 to give him large doses might result in bringing on a con- 

 dition of hyperthyroidism in the patient. We must also 

 note the contraindication of thyroid in patients with 

 heart disease. 



TECHNIQUE OF ORGANO THERAPY. 



The choice of the product to be utilized, depends on the 

 general rules we have mentioned. It also depends on the 

 special indications which we learn from the study of 

 diseases to which organo therapy can be applied. The 

 ease of administration and the harmlessness of organo 

 therapy, as well as the uncertain knowledge we still have 

 of the subject, allow us. to experiment rather extensively, 

 remembering, however, the special contraindications for 

 each product. In certain cases we have to resort to 

 complex organo therapy. In these cases complex physio- 

 logical and pathological syndromes call for complex 

 organo therapy. 



There are certain organs whose internal secretions are 

 closely connected. For instance, the internal secretion 



