The American Materia Medica, Therapeutics and Pharmacognosy, 1919, was written by Finley Ellingwood, M.D. Elaterium. Ecballium elaterium. Jalap. Ipomea jalapa. Helleborus. Helleborus niger. Magnesium Sulphate. Croton Oil. Tiglii Oleum. Book Navigation ‹ A Summary and Comparison of the Liver Remedies. up Elaterium. Ecballium elaterium. ›