potassium iodide or glutathione

The input "potassium iodide or glutathione" refers to two distinct chemical compounds, potassium iodide and glutathione, rather than a single drug or combination product. **Potassium iodide (KI)** is an inorganic compound used as a medication and dietary supplement. Its primary mechanism involves saturating the thyroid gland with stable, non-radioactive iodine, which prevents the uptake of radioactive iodine, thereby protecting the thyroid from radiation-induced damage, particularly during nuclear emergencies. It also acts as an antithyroid agent by inhibiting thyroid hormone release and synthesis (Wolff-Chaikoff effect) and can be used to treat hyperthyroidism and thyroid storm. Additionally, potassium iodide functions as an expectorant, helping to liquefy mucus in respiratory conditions like asthma and COPD, and has antifungal properties used in treating skin sporotrichosis. **Glutathione (GSH)** is a tripeptide molecule composed of three amino acids: glutamate, cysteine, and glycine. It is naturally produced by the liver and found in nearly every cell, playing a crucial role in various biological processes. Glutathione is known as the "master antioxidant" due to its ability to neutralize free radicals and reactive oxygen species, thereby protecting cells from oxidative stress. It also plays a vital role in detoxification by conjugating with toxins and xenobiotics, facilitating their excretion. Furthermore, glutathione supports immune system function and helps maintain cellular redox balance. It is available as a dietary supplement and can be administered via various routes for different conditions.