Potassium Iodide Solution

• It is used to prevent thyroid cancer from radiation.
• It may be given to you for other reasons. Talk with the doctor.

Use this medicine as ordered by your doctor. Read all information given to you. Follow all instructions closely.

• Measure liquid doses carefully. Use the measuring device that comes with potassium iodide solution.
• Take this medicine only when told by public health officials.
• Take once a day until the chance of being exposed to radiation ends.

What do I do if I miss a dose?

• Take a missed dose as soon as you think about it.
• If it is close to the time for your next dose, skip the missed dose and go back to your normal time.
• Do not take 2 doses at the same time or extra doses.

WARNING/CAUTION: Even though it may be rare, some people may have very bad and sometimes deadly side effects when taking a drug. Tell your doctor or get medical help right away if you have any of the following signs or symptoms that may be related to a very bad side effect:

• Signs of an allergic reaction, like rash; hives; itching; red, swollen, blistered, or peeling skin with or without fever; wheezing; tightness in the chest or throat; trouble breathing or talking; unusual hoarseness; or swelling of the mouth, face, lips, tongue, or throat.
• Trouble swallowing or speaking.
• Wheezing or coughing.
• Shortness of breath.
• A heartbeat that does not feel normal.
• Chest pain.
• Fever and joint pain.
• Neck swelling.
• Swelling in the arms or legs.
• Black, tarry, or bloody stools.
• Throwing up blood or throw up that looks like coffee grounds.
• A burning, numbness, or tingling feeling that is not normal.
• Feeling very tired or weak.
• Feeling confused.
• Very bad headache, metal taste, sore teeth and gums, burning of the mouth or throat, eye irritation, eyelid swelling, more spit, or skin irritation.

All drugs may cause side effects. However, many people have no side effects or only have minor side effects. Call your doctor or get medical help if any of these side effects or any other side effects bother you or do not go away:

• Headache.
• Upset stomach or throwing up.
• Belly pain.
• Loose stools (diarrhea).

These are not all of the side effects that may occur. If you have questions about side effects, call your doctor. Call your doctor for medical advice about side effects.

You may report side effects to the FDA at 1-800-FDA-1088. You may also report side effects at http://www.fda.gov/medwatch.