Clarke gives the toxic effects of homeopathy drug Iodum and its therapeutic uses in non-toxic doses in his book The ABC Manual of Materia Medica and Therapeutics, published in 1901….



      Torpor of the lymphatic glands and capillaries in the presence of syphilitic nodes, gummata, periosteal thickening and deposits in the nervous system. Stimulates the lymphatics in induration of the thyroid, tonsils spleen, mammae, etc. Hypertrophy of the prostate. Enlargement of the cervix uteri. Removes inflammatory products of chronic articular rheumatism. Muscular and valvular heart lesions following rheumatism. Arterio-sclerosis. Chronic bronchitis and bronchitis and bronchitis asthma, with inflammatory thickening of the bronchi.


      Watery discharge from the nose, lachrymation, sneezing, tip of the nose reddened and swollen. Frontal headache. Conjunctivitis. OEdema of the retina. Tissues about the orbit oedematous 1. Stomatitis, with ptyalism 2. Angina, oedema of the glottis. Hoarseness increasing to aphonia. Chronic inflammation simulating laryngeal phthisis. Congestive oppression of the bronchi. Pneumonia. Hemoptysis. 3 Serous effusions into the pleura and peritoneum 4. Catarrhal gastritis and enteritis 5. Chronic inflammation of the liver and kidneys with albuminuria 6. Rapid emaciation. Slight increase of temperature. Hypochondriasis, anxiety, palpitation of the heart, weakness insomnia. Atrophy of the limbs, with trembling. Blood thin Eczema, petechia, purpura, acne 7.


      Tinctura iodi, 1-5 m (For external use only)

Iodoform, 1-5 gr.

Liquor iodi Compositus, 3-20

Potassii iodidum, 5-60 gr.

Sodii iodidum, 2-20 gr.

Ammonii iodidum, 1/2-10 gr.

Begin with not more than eight grains of the sodium or potassium salt.


      Coryza when the nose is red and swollen. 1

Severe paroxysmal sneezing 1

Strumous ozena with fetor (Internally and by inhalation as below)

Itching of the nose and eyes sneezing, running at the nose, lachrymation, severe frontal headache. 1 (Twenty to thirty drops of the tincture to pint of boiling water. Inhale the steam)

Chronic colds in the head 1 (Two to three grains of the iodide of potassium three times per day)

Catarrhal deafness from extension of inflammation through Eustachian tube.1

Profuse dark discharge from the throat without the constitutional symptoms of diphtheria.

Membraneous croup. (Inhale tincture in boiling water).

Diphtheria. (Topically, and in doses of one to three drops of the compound tincture).

Strumous ophthalmia.1.

Bronchitic asthma.3. (Internally and two percent. Solution of potassium iodide used as a spray).

Catarrhal and fibrinous pneumonia.3. (Ammonium iodide in minute doses).

Capillary bronchitis.3. (Iodide of ammonia, one to five grains).

Chronic bronchitis.3. (Iodide of ammonia, one to five grains).

Chronic pleurisy.4.

Induration of the tonsils, spleen, mammae, testes, or lymphatic glands. (Iodide of ammonia one dram, benzoated lard one ounce).

Hypertrophy of prostate gland. (Iodoform, two grains in rectum or parenchymatous injection of tincture).

Chronic metritis. (Iodoform in rectum).

Enlargement of cervix uteri. (Internally, and apply tincture).

Induration of thyroid. (Internally five to ten drops compound tincture largely diluted, or parenchymatous injection of ten to fifteen drops of the tincture).

Chronic articular rheumatism to remove inflammatory products. Iodide of potassium in syrup of sarsaparilla).

Valvular and other diseases of the heart following rheumatism.

Marasmus-the “tabes mesenterica” of childhood.

Gastric and duodenal catarrh, affecting the biliary ducts.5.

Scrofula, glandular forms without characteristic deposits.

Hygroma of the knee. (Compresses of tincture of iodine in water).

Arterio-sclerosis. (Five to ten grains of the iodide of potash three times a day).


Interstitial nephritis.6.

Tertiary syphilis.7. (Use sodium or potassium iodide freely).

Syphilitic nodes and gummata.7.

Syphilitic or rheumatic thickening of the periosteum.7.

Syphilis of the bones and periosteum.

Syphilis of the nervous system.

Paralysis of the lower extremities with atrophy and contraction.7.

Acne, eczema, petechia and ulcerations below the knees.7.

Mercurial and other ptyalism.2.

George Hardy Clark
Clark, George H. (George Hardy) 1860-1941 was the author of: Homeopathic Treatment of Asthenopia; Lee and Clark's Cough and expectoration : a repertorial index of their symptoms; The A B C Manual of Materia Medica and Therapeutics; A system for the care and training of children; The Black Plague and Its Control.