Potassium Iodide

Indications

Indications and Usage Potassium iodide oral solution, USP is for use as an expectorant in the symptomatic treatment of chronic pulmonary diseases where tenacious mucus complicates the problem, including bronchial asthma, bronchitis and pulmonary emphysema.

Dosage and administration (summary)

Dosage and Administration Adults– 0.3 mL (300 mg) or 0.6 mL (600 mg) diluted in one glassful of water, fruit juice or milk 3 to 4 times daily. To minimize gastric irritation, take with food or milk. This medication should be used no longer than necessary to produce the desired effect.

Contraindications

Contraindications Contraindicated in patients with a known sensitivity to iodides.

Warnings and precautions

Warnings Potassium iodide can cause fetal harm, abnormal thyroid function, and goiter when administered to a pregnant woman. Because of the possible development of fetal goiter, if the drug is used during pregnancy or if the patient becomes pregnant during therapy, apprise the patient of the potential hazard.

Pregnancy

Pregnancy: see "Warnings" section.

Storage and supply

Store at 20° to 25°C (68° to 77°F); excursions permitted to 15° to 30°C (59° to 86°F) . Keep tightly closed and protected from light. For the 30mL bottle, place the child-resistant cap back on the amber glass bottle after using the clear plastic dropper for dispensing.

Source: Potassium Iodide (Potassium Iodide (Saturated)) — US FDA prescribing information, 2026-08-25, DailyMed. Summarised and shortened; the full label governs. Iranian registration, indications and labelling may differ.