The Iodides are the iodine salts of the alkali metals.

Pharmacodynamics.

Central Nervous System. - Very large doses paralyze the depressor terminals in the medulla.

Secretory Glands. - Urine increased; some local action. Absorption is very rapid from the mucosa. Excretion is chiefly in the urine, 85% in a week.

Symptoms.

Therapeutic Dose.

No effect, unless patient has an idiosyncrasy, when iodism may develop.

Therapeutics.

Iodism.

Acute catarrh of nasopharynx and accessory sinuses. Salivation and stomatitis. Erythemas and eczemas. Possible oedema of larynx.

The Iodides are of great value in the treatment of tertiary syphilis and postsyphilitic manifestations; though their mode of action is obscure.

Dosage.

Potassii Iodidum, 0.1 to 1.3 Gm. Sodii Iodidum, 0.1 to 1.3 Gm.