What are the side effects of potassium iodide (KI)?

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Some possible side effects of potassium iodide (KI) include gastro-intestinal discomfort including nausea, diarrhea, vomiting and stomach pain. These can usually be relieved by taking KI after food or milk and do not require medical attention. Some more serious possible side effects can be caused by an allergic reaction to iodine. These may include hives, joint pain, and swelling of the face, mouth or lymph glands. If you have any of these symptoms, you should consult a doctor immediately. Other side effects can arise from prolonged use or too high a dose of KI, such as burning or metallic taste in the mouth, sore gums and teeth, severe headaches, confusion, muscle weakness and tingling in the hands or feet. These symptoms should be seen by a doctor immediately and monitored closely. In most cases, KI is taken for only one or a few doses and is not used for prolonged periods.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.