back Mercurius Dulcis

Synonym. - Mercurious chlorid. Common names.- Subchloride of Mercury, Calomel. Preparation.- Triturations.


Acts powerfully upon the liver and upon mucous membranes, especially upon the mucous lining of the intestinal tract. In the liver it causes, primarily, an irritation resulting in an excessive secretion of bile, and, later, if the drug be long continued, in congestion and enlargement of that organ. On the mucous membranes it causes a catarrhal inflammation. Its most important symptom is excoriating, grass-green stools, without tenesmus.


Mind- Languor. Prostration. Apprehension.

Head.- Headache; in morning. Pain or heaviness across forehead.

Eyes.- Conjunctiva red. Scrofulous ophthalmia; ulceration of the cornea; chronic blepharitis.

Ears.- Catarrhal inflammation of the Eustachian tube and middle ear.

Face.- Pallid as a corpse. Swelling. Inflammation of the lips.

Mouth. - Inflammation of the tongue. Tongue black. Constant flow of dark putrid saliva; intolerable odor. Offensive breath; salivation; sore gums; mouth filled with ulcers.

Throat. - Ulceration. Swallowing difficult. Granular pharyngitis.

Stomach.- Loss of appetite in the morning. Profuse vomiting.

Stool and Anus. - Scanty, bloody, mucous, with bile and constant desire, without tenesmus. Dark-green watery, with griping (Mag. c). Anus sore and burning. Dysentery; small stools of mucus and blood, covered with bile.

Skin. - Flabby and ill-nourished. Swollen glands. Phagedenic ulcers. Copper-colored eruptions.

Compare.- Merc, sol., Kali mur.


The clinical range of Merc. dulc.,from a homoeopathic standpoint, is limited, but it is a remedy of great value when well indicated. The conditions calling for its use have already been detailed. Its most important use is in the treatment of infantile diarrhoea, with grass-green excoriating stools and very little tenesmus. It is all the better indicated in both children and adults where the liver is enlarged and where there is ulceration of the buccal mucous membrane, very offensive breath, swollen glands, ptyalism, etc. The common use of Calomel in physiological doses for a torpid liver with white stools is not homoeopathic. This action is mechanical and may be justifiable in some instances, as any other mechanical measure may be, but its constant abuse in all classes of cases, as is so often witnessed, cannot be justified.

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