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Strong Iodine (solution)

Generic name: iodine and potassium iodide (solution)

Brand names: Lugol's, Strong Iodine

Used for surgery
Last updated November 3, 2026 0 views
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What is Strong Iodine?

Strong Iodine is used by itself or with other medicines to help prevent and treat certain types of goiters (enlarged thyroid gland).

Strong Iodine is sometimes given to manage symptoms right before you have surgery on your thyroid gland.

Strong Iodine may also be used for reasons not mentioned in this medication guide.

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How should I take Strong Iodine?

Follow all directions on your prescription label and read all medication guides or instruction sheets. Use the medicine exactly as directed.

Taking more than your recommended dose will not make this medicine more effective and may cause serious side effects.

Measure liquid medicine with the supplied measuring device (not a kitchen spoon). Mix the liquid with water or juice before taking.

Strong Iodine is usually taken 3 times per day.

Call your doctor if your symptoms do not improve or if they get worse.

You may need medical tests to help determine how long you should use Strong Iodine.

Store at room temperature away from moisture and heat.

This section was rewritten for readability and reviewed for meaning.

Warnings

Use only as directed. Inform your doctor if you are taking other medicines or have other medical conditions or allergies.

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Before taking this medicine

You should not use Strong Iodine if you are allergic to iodine or potassium iodide, or if you have:

  • tuberculosis;
  • severe allergic skin reactions;
  • swelling of the larynx;
  • swelling of the salivary glands; or
  • increased salivation after receiving iodides.

Ask a doctor before using Strong Iodine if you are pregnant or breastfeeding.

Do not give this medicine to a child without medical advice.

This section was rewritten for readability and reviewed for meaning.

Strong Iodine side effects

Get emergency medical help if you have signs of an allergic reaction: hives, difficulty breathing, swelling of your face, lips, tongue, or throat.

Strong Iodine may cause serious side effects. Call your doctor immediately if you have:

  • swelling in your neck or throat (enlarged thyroid, or goiter); or
  • stomach pain, nausea, vomiting, or diarrhea.

Common side effects of Strong Iodine may include:

  • skin rash.

This is not a complete list of side effects, and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

This section was rewritten for readability and reviewed for meaning.

What happens if I miss a dose?

Take the medicine as soon as possible, but skip the missed dose if it is nearly time for your next dose. Do not take two doses at the same time.

This section was rewritten for readability and reviewed for meaning.

What happens if I overdose?

Seek emergency medical attention or call the Poison Help line at 1-800-222-1222 if anyone has accidentally swallowed the medicine.

If Strong Iodine accidentally gets on your skin or in your eyes, wash it thoroughly with water for about 15 minutes.

This section was rewritten for readability and reviewed for meaning.

What other drugs will affect Strong Iodine?

Other drugs may affect Strong Iodine, including prescription and over-the-counter medicines, vitamins, and herbal products. Tell your doctor about all other medicines you use.

This section was rewritten for readability and reviewed for meaning.

Related medicines

Before you take this medicine: the information on this page is general and may not cover your personal circumstances. Read the label supplied with your medicine and ask a pharmacist or doctor if you are unsure, especially if you are pregnant, breastfeeding, taking other medicines or managing a long-term condition.
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Content is provided for education and is not medical advice. See our medical disclaimer.