Acts upon the digestive tract in a manner similar to its relatives Croton, Jatropha, and other so-called drastic purgatives, inducing vomiting, purging, and other symptoms simulating a choleraic condition. It also acts upon the brain, producing violent congestion, accompanied by symptoms of acute mania. Hempel considered this so important a part of its action that he remarks, "I should never use Euphorbium internally, unless the brain symptoms indicated its use together with the other phenomena. If the cerebral action is not disturbed, if there are no signs of cerebral irritation, no signs of violent congestion of the brain, or even delirium, Euphorbium may not prove homoeopathic to the existing irritation in the stomach and bowels ."- Hempel and Arndt's Materia Medica, Vol. II, p. 107. It also acts upon the skin, producing eczematous and erysipelatous inflammation. Characteristic symptoms.