Can povidone-iodine be ingested?
Jan 24, 2025
Source: Cainiu Health
Dr. Shen Yonghua
Introduction
Under normal circumstances, povidone-iodine should not be ingested. If external use of povidone-iodine is required, it is recommended to consult a doctor. The complex formed by iodine and surfactant in povidone-iodine may cause strong irritation to the mucous membranes of the mouth, esophagus, and gastrointestinal tract after entry. The mucous membranes of the mouth and esophagus are relatively delicate and may experience symptoms such as burns, pain, and swelling upon contact with povidone-iodine.
Under normal circumstances, povidone-iodine should not be ingested. If topical use of povidone-iodine is required, it is recommended to consult a physician. Detailed explanations are as follows:
Povidone-iodine contains a complex of iodine and a surfactant. When it comes into contact with the mucous membranes of the mouth, esophagus, and gastrointestinal tract, it may cause strong irritation. The mucous membranes of the oral cavity and esophagus are relatively delicate and may experience symptoms such as burns, pain, and swelling after contact with povidone-iodine. Severe cases may even lead to mucosal ulcers and erosion. Once entering the stomach, it may also cause discomfort such as nausea and vomiting, damaging the gastric mucosa and affecting normal digestive function.
Furthermore, when povidone-iodine is ingested, iodine can be absorbed into the bloodstream. Excessive iodine may have adverse effects on multiple organs and systems in the body. For example, it may affect thyroid function, interfere with the thyroid's normal uptake and utilization of iodine, leading to abnormal secretion of thyroid hormones. In addition, it may place a burden on vital organs such as the liver and kidneys, affecting their normal metabolic and excretory functions. Severe cases may even result in liver or kidney damage.
If povidone-iodine is accidentally ingested, one should immediately drink large amounts of water or milk to dilute it and seek medical attention promptly. The individual should inform the doctor about the ingestion incident and the amount ingested, so that appropriate treatment measures can be taken timely.
