Manganum Sulfuricum
Allen, Supplement to the Encyclopedia of Pure Materia Medica, 1879, Vol. X, p. 577
Authority. Alexander Ure, Med. Gaz. (Pharm. Journ., vol. iv, 1844-5, p. 285), effects of a drachm dissolved in half a pint of water, and drank before breakfast.
One or more liquid stools (after one hour or so).