Through the cerebro-spinal nervous system, Veratrum acts especially upon the system of nutrition, affecting profoundly the entire vegetative sphere. The blood becomes disorganized, and separated into its constituent elements, the circulation is embarrassed, and, as a result, general torpor of the vegetative system occurs, giving rise to a true choleraic condition, general coldness, prostration, collapse, copious watery vomiting and purging, spasmodic colic and profuse cold, clammy perspiration. It also affects, but to a less degree, the sensorium, causing excitation of the cerebral nerves, resulting in delirium and mania. It also produces exhaustion of nerve power, even to complete extinction. The chief feature of Veratrum is the choleraic condition above described. Characteristic symptoms.