Medication Description: Potassium Iodide (Kalii iodidum)
CALIUM IODID (Kalii iodidum).
Synonyms: Potassium iodide, Kalium iodatum.
Colorless (white) cubic crystals or flavourless white crystalline powder, salt-bitter taste. Damp in humid air. Easily soluble in water (1: 0.75), alcohol (1:12), glycerin (1: 2, 5).
Potassium iodide is well absorbed in the digestive tract, mainly excreted by the kidneys.
Used as an iodine drug for hyperthyroidism, an endemic goiter, to prepare for operations in severe forms of thyrotoxicosis; with inflammatory diseases of the respiratory tract, bronchial asthma; in case of eye diseases (cataract, clouding of the cornea and vitreous body, hemorrhage in the eye membrane); as well as fungal lesions of the conjunctiva and cornea.
An important property of potassium iodide is its ability to prevent the accumulation of radioactive iodine in the thyroid gland and to ensure its protection from the effects of radiation.
Potassium iodide is taken orally in the form of tablets, solutions and mixtures. To avoid irritation of the gastrointestinal tract, wash down with milk, jelly or sweet tea.
Potassium iodide solutions are not injected into a vein due to the inhibitory effect of potassium ions on the heart (see Sodium iodide).
When endemic goiter is prescribed inside of 0.04 g once a week. In endemic areas, table salt is also used, to which 1, 0, 2, 5 g of potassium iodide is added per 100 kg of salt.
When diffuse goiter is prescribed at 0.04 g 3 times a day, then at 0.125 g 1 - 2 times a day in courses of 20 days with intervals of 10 days.
As a mucolytic agent designate 1 - 3% solution of 2 - 3 tablespoons (0.3 - 1, 0 g) 3 - 4 times a day.
As an aid, potassium iodide is prescribed to patients with syphilis (mainly in the tertiary period). The drug contributes to the resorption of infiltrates, reducing pain. Assign in the form of 3 - 4% solution of 1 tablespoon 3 times a day after meals.
Relatively large doses (1 tablespoon of 10–20% solution 4 times a day) are prescribed for actinomycosis of the lungs.
In ophthalmic practice, potassium iodide eye drops are used as a "resorbable" agent in the form of a 3% solution. Instill into the conjunctival sac 2 drops 3 to 4 times a day for 10 to 15 days. If necessary, repeat the treatment.
With the threat of radioactive iodine in the body to protect against exposure to the thyroid gland is prescribed for adults and children over 2 years, 0.125 g 1 time per day; children up to 2 years old - at 0.04 g per day. The tablet is crushed and give with a small amount of jelly or sweet tea.
The drug is taken daily until the disappearance of the threat of radioactive iodine in the body.
To protect the thyroid gland from exposure to radiopharmaceuticals labeled with radioactive iodine used in scanning, they give potassium iodide 0.125 g once a day for 5 to 10 days.
When using potassium iodide, the effects of iodism are possible: runny nose, urticaria, Quincke edema, etc., and when taken orally - discomfort in the epigastric region.