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.
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.
1 g/mL
Rx only
Potassium iodide oral solution, USP is a saturated solution of potassium iodide containing 1 gram of potassium iodide per mL.
Potassium iodide is thought to act as an expectorant by increasing respiratory tract secretions and thereby decreasing the viscosity of mucus.
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.
Contraindicated in patients with a known sensitivity to iodides.
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.
General: In some patients, prolonged use of iodides can lead to hypothyroidism. Iodides should be used with caution in patients having Addison's disease, cardiac disease, hyperthyroidism, myotonia congenita, tuberculosis, acute bronchitis, or renal function impairment.
Drug Interactions: Concurrent use with lithium or antithyroid drugs may potentiate the hypothyroid and goitrogenic effects of these medications. Concurrent use with potassium-containing medications, potassium-sparing diuretics and angiotensin-converting enzyme inhibitors (ACE inhibitors) may result in hyperkalemia and cardiac arrhythmias or cardiac arrest.
Drug/Laboratory Test Interactions: Thyroid function tests may be altered by iodide.
Pregnancy: see "Warnings" section.
Nursing Mothers: Potassium iodide is excreted in breast milk. Use by nursing mothers may cause skin rash and thyroid suppression in the infant.
Pediatric Use: Safety and effectiveness in children have not been established.
The most frequent adverse reactions to potassium iodide are stomach upset, diarrhea, nausea, vomiting, stomach pain, skin rash, and salivary gland swelling or tenderness. Less frequent adverse reactions include gastrointestinal bleeding, confusion, irregular heartbeat, numbness, tingling, pain or weakness in hands or feet, unusual tiredness, weakness or heaviness of legs, fever, and swelling of neck or throat. Thyroid adenoma, goiter, and myxedema are possible side effects.
Iodism or chronic iodine poisoning may occur during prolonged treatment or with the use of high doses. The symptoms of iodism include burning of mouth or throat, severe headache, metallic taste, soreness of teeth and gums, symptoms of head cold, irritation of the eyes with swelling of the eyelids, unusual increase in salivation,acneform skin lesions in the seborrheic areas, and rarely, severe skin eruptions. If symptoms of iodism appear, the drug should be withdrawn and the patient given appropriate supportive therapy.
Hypersensitivity to iodides may occur and may be manifested by angioedema, cutaneous and mucosal hemorrhage, and signs and symptoms resembling serum sickness, such as fever, arthralgia, lymph node enlargement, and eosinophilia.
Acute toxicity from potassium iodide is relatively rare. An occasional individual may show marked sensitivity and the onset of acute poisoning can occur immediately or hours after administration. Angioedema, laryngeal edema and cutaneous hemorrhages may occur.
Iodism or chronic iodine poisoning may occur during prolonged treatment or with the use of high doses. Symptoms of iodism typically disappear soon after discontinuation of the drug. Abundant fluid and salt intake aids in iodide elimination.
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.
Potassium iodide oral solution, USP is supplied in 1 fluid ounce (30 mL) bottles (NDC 72919-728-30) with a calibrated dropper marked to deliver 0.3 mL (300 mg). Inactive ingredient: Sodium thiosulfate as a preservative.
Store at 20° to 25°C (68° to 77°F); excursions permitted to 15° to 30°C (59° to 86°F) [See USP Controlled Room Temperature]. 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.
Notice: When exposed to cold temperatures, crystallization may occur, but on warming and shaking, the crystals will redissolve. If the solution turns brownish-yellow in color, it should be discarded.
Manufactured for
Emerald Therapeutics, LLC
Birmingham, AL 35209
728111 REV. 0826
© 2026 Emerald Therapeutics, LLC
NDC 72919-728-30
Potassium Iodide
Oral Solution, USP
(saturated)
1 g/mL
1 Fluid Oz.
(30 mL)
Rx only
EMERALD
THERAPEUTICALS, LLC
| Resource | Code type | Value | Equivalent identifiers | Source image |
|---|---|---|---|---|
| Barcode | EAN-13 | 0372919728307 | GTIN-13: 0372919728307 EAN-13: 0372919728307 GTIN-12: 372919728307 UPC-A: 372919728307 GTIN storage (14 digits): 00372919728307 | potassium-01.jpg |
Every source-derived product name is available through these pages.
| Product NDC | Package NDC |
|---|---|
| 72919-728 | 72919-728-30 |
Every source-derived ingredient row is available through these pages.
| Name | UNII | Kind |
|---|---|---|
| Potassium Iodide | 1C4QK22F9J | ACTIB |
| SODIUM THIOSULFATE | HX1032V43M | IACT |
| Version | Effective date | Source | Hydrated |
|---|---|---|---|
| 1 | 2026-08-25 | daily-update | 2026-08-28 00:04:00 |
OpenFDA label data provides additional search and identifier links. DailyMed’s Structured Product Label is the canonical label on FDA.report. Matching records are deduplicated before they are shown below.
| Brand | Generic | Manufacturer | SPL set ID | Effective date | Available safety fields | Join |
|---|---|---|---|---|---|---|
| Potassium Iodide (Saturated) | POTASSIUM IODIDE | Emerald Therapeutics, LLC | 0bdf305f-ed4a-49d1-8901-edaed8d67850 | 2026-08-25 | Warnings, Adverse reactions | 72919-728-30 72919-728 72919072830 082eb221-e9d4-4638-b97b-6ef337cd368d 0bdf305f-ed4a-49d1-8901-edaed8d67850 |
Adverse event summaries are temporarily unavailable. Other product information remains available.