Where is the pathogenesis of Cicuta found ? In Hahnemann's Materia Medica Pura . What is Cicuta virosa ? It is the long leaved Water Hemlock , and the tincture is from the fresh root of the plant just coming into bloom, prepared like the preceding. It should be imported. What is its chief sphere of action ? In spasms, with rigidity, fixed staring eyes, blue face and frothing at the mouth ; there is great difficulty in breathing, opisthotonos and loss of consciousness, and these spasms are followed by profound exhaustion. What are the skin symptoms of the drug ? Pustular eruption, with yellowish scabs about the mouth, matting the whiskers.