The efficacy of Vitamin B is to supplement all types of vitamin B, treat peripheral neuritis, keratitis, hepatitis and other diseases, contraindications are patients with renal dysfunction should be cautious, avoid with stimulating foods. 1. Efficacy and role Clinically used B vitamins, including vitamin B₁, vitamin B₂, vitamin B₆ and so on. Among them, vitamin B₁, which can participate in the energy metabolism of nervous tissue, is used for vitamin B₁ deficiency, as well as adjuvant treatment of peripheral neuritis, central nervous system injury and other diseases; vitamin B₂ is mainly used for the treatment of keratitis, keratitis, lingual inflammation and other diseases; vitamin B₆ is mainly used for the treatment of vitamin B₆ deficiency and radiotherapy Vomiting and other diseases caused by radiotherapy. 2. Contraindications: Vitamin B is generally metabolized by the kidneys, oversupplementation will increase the burden on the kidneys, so patients with renal dysfunction should be used with caution; avoid the use of stimulating foods, such as coffee, strong tea, alcoholic beverages, so as not to weaken the effect.