Vitamin B₂ supplementation is required for patients suffering from diseases related to keratitis, labial inflammation, lingual inflammation and conjunctivitis due to vitamin B₂ deficiency. Vitamin B₂ is a vitamin-like drug used for the prevention and treatment of vitamin B₂ deficiencies in conditions such as xerostomia, labyrinthitis, labyrinthitis and conjunctivitis. When the body is deficient in vitamin B₂ may affect the biological oxidation of the organism, causing metabolic disorders, the lesions of which most often manifest themselves as inflammation of the mouth, eyes and external genital area. Allergic to vitamin B₂, pregnant and lactating women and other people are prohibited to use. Vitamin B₂ Injection contains benzyl alcohol and is prohibited for intramuscular injection in children. In the normal state of renal function after taking vitamin B₂ urine yellow, but does not affect the continued use of the drug. Patients need to take vitamin B₂, need to be under the advice of a doctor, not self-medication, so as not to delay the condition.