Fuxikang Selenium‑Yeast Capsules

1. Indications and Usage
Selenium Deficiency: Indicated for the prevention and treatment of selenium deficiency in patients with inadequate dietary intake or malabsorption syndromes.
Antioxidant Support: Used to support immune function and protect cells from oxidative damage caused by free radicals.
2. Dosage and Administration
Standard Dose: The usual dosage is one capsule once daily, taken orally after a meal.
Administration: Swallow the capsule whole with water. Do not exceed the recommended dose.
3. Mechanism of Action
Antioxidant Defense: Selenium is an essential component of selenoproteins, such as glutathione peroxidase, which catalyzes the decomposition of hydrogen peroxide and lipid peroxides, protecting cellular membranes from oxidative damage.
Immune Function: It supports the proliferation of lymphocytes and enhances the body’s resistance to infections.
4. Safety and Warnings
Selenosis: Excessive intake can lead to selenium toxicity (selenosis), characterized by garlic breath odor, hair loss, nail brittleness, and gastrointestinal disturbances.
Renal/Hepatic Impairment: Patients with severe renal or hepatic dysfunction should use with caution, as metabolism and excretion of selenium may be impaired.
Allergies: Do not use in patients with known hypersensitivity to yeast-derived products.
5. Adverse Reactions and Clinical Research
Common Adverse Reactions: Gastrointestinal discomfort, nausea, and headache.
Toxicity Symptoms: Hair loss, nail discoloration, and skin rash may occur with chronic overdose.
Clinical Findings: Clinical studies suggest potential benefits in reducing oxidative stress markers, though evidence for specific disease prevention remains mixed.
6. Drug Interactions
Cisplatin: Selenium may interfere with the antineoplastic activity of cisplatin and increase its nephrotoxicity.
Antacids: Aluminum or magnesium-containing antacids may decrease selenium absorption.
Statins: Theoretical interactions with statin-induced myopathy, though clinical significance is unclear.
7. Pharmaceutical Information
Active Ingredient: Selenium-Yeast (Selenium produced by yeast fermentation, typically containing selenomethionine).
Strengths: Typically available as 50 mcg or 100 mcg capsules.
Appearance: Hard gelatin capsules, usually containing a yellow or light brown powder.
Storage: Store in a cool, dry place, protected from light and moisture.