The title refers to vitamin B2 tablets, the yellow color of urine after taking this product is related to drug metabolism, which is mostly a normal transient reaction. Vitamin B2 tablets are vitamin drugs, the main component of which is vitamin B2, can be used for the prevention and treatment of vitamin B2 deficiency, such as conjunctivitis, chapped lips, keratitis, lingual inflammation, scrotal inflammation and seborrheic dermatitis, etc., the urine can be yellow, but does not affect the continuation of the drug. This product in the normal state of renal function to take almost no toxicity, but must be taken in accordance with the recommended dosage (children’s dosage should also consult a physician or pharmacist), can not be overdosed, allergic to this product should also be prohibited, and allergy should be used with caution, the specific use of the drug, please read the instructions for the use of drugs and consult a physician or pharmacist.