“…When treating patients with reserpine, it is impossible to avoid any influence on the metabolism of the organism. The temperature of the body goes down 9 , there is an increased flow of tears and saliva, and the motility of the gastro‐intestinal region is increased 9 , 16 , 33 with an increase of its secretion. This may be due to a liberation both of histamine and serotonine.…”