Arsenicum Iodatum

Arsenicum Iodatum homeopathy medicine – drug proving symptoms from Encyclopedia of Pure Materia Medica by TF Allen, published in 1874. It has contributions from R Hughes, C Hering, C Dunham, and A Lippe….


Arsenious Iodide, AsI3, Iodide of Arsenic.

Preparation for use, Trituration.


Headache all over the head (after twenty-five hours).

Bad feeling in head, like a bad cold (third evening).

Woke in the morning with a bad headache, which lasted all day; dull, heavy, with pressing from within outwards, worse on motion, stooping or studying (fourth day).

Head seemed enormously large and heavy, with pain.

Dulness of the head, with dull pain in the left malar bone, and occasional slight frontal headache, the entire morning. Pain in head prevented sleep (fourth day).

Severe frontal headache, with dulness of the entire head during the forenoon, with stiffness and soreness of the left side of the neck, worse when moving the head.

An exceedingly sharp pain in the forehead and in both ears, especially the left ear, when riding, in a sharp cold wind (after three hours).

Several times had a pain in the right temple.


Weakness of the eyes with burning pain; feeling as if lachrymation would set in (after two hours).


Nose quite dry (fourth day).


Intermittent pain in the first right upper molar tooth.


After moving about a short time (morning of fourth day), began to hawk up quantities of thick mucus and clotted blood mixed; this continued a half hour; it seemed to come from the head, and relieved the pain very materially.


No appetite, ate nothing all day (third day).

Pains in stomach aggravated on rising after sitting (third day).

Pain and pyrosis became unbearable (somewhat relieved by a dose of Bryonia 6th).

Considerable pain in the stomach, in the afternoon, with raising of wind and a greasy fluid similar to that after eating pork (third day).


The abdomen is hard and distended with flatus, which is constantly discharged.

Sharp, cutting pains in the abdomen, which warned him to go to stool; the pains became excruciating, embracing the entire abdomen, and obliging him to bend almost double; after a great deal of straining, he passed a large, soft stool, which afforded some relief (after eleven hours).

Severe cutting pains in the abdomen, as if he would have a stool; he had no stool, but large quantities of wind escaped; these pains are partially relieved by an escape of flatus, and by the application of warmth to the abdomen (after eight and a half hours).

Stool and Anus.

Continual aching in the anus, with a seeming inability to keep the sphincter closed; this would amount to a real dysenteric straining at stool (third day).

On rising in the morning great urging to stool, but stool was scanty and small in size, as though the anus was contracted; the stool was mushy, with occasional scybalae, also small in size, of a peculiar black color, resembling faeces of an ox; attended with straining as in dysentery (third day).

Diarrhoea, for six or seven days, five to ten stools each day, color the same till near the last, when it began to assume a natural color; the diarrhoea not at all at night, but the urging commenced on beginning to move about in the morning.

Stool in the evening soft and mushy, with considerable straining, very dark, almost black, (second day).

Respiratory Apparatus.

Slight hacking cough, with dryness and stoppage of the nostrils.

Heart and Pulse.

Pulse irregular, 96; in health, about 75 (after ten minutes).

Neck and Back.

Burning heat in the back (lumbar region), as if the clothes were on fire (after quarter of an hour).

Soreness of the back, especially of the back of the neck, as if he had been beaten.

Itching over the back (after two and a quarter hours).

Extremities in General.

Heaviness of the limbs, with weariness of the whole body.

TF Allen
Dr. Timothy Field Allen, M.D. ( 1837 - 1902)

Born in 1837in Westminster, Vermont. . He was an orthodox doctor who converted to homeopathy
Dr. Allen compiled the Encyclopedia of Pure Materia Medica over the course of 10 years.
In 1881 Allen published A Critical Revision of the Encyclopedia of Pure Materia Medica.