Vitamin B6 is used to treat vitamin B6 deficiency, pregnancy radiation sickness and vomiting due to anticancer drugs, isoniazid poisoning, seborrheic dermatitis, and malnutrition. Vitamin B6 is a water-soluble vitamin that is used clinically to treat symptoms of vitamin-like and mineral deficiencies. This drug is mainly used for the treatment of vitamin B6 deficiency, replenish the body’s vitamin B6. It can also be used to treat preventive and neurological lesions, seborrheic dermatitis, dry and cracked lips, and is also effective for the prevention and treatment of isoniazid intoxication; it is also used for vomiting due to radiation sickness in pregnancy and anticancer drugs, seborrheic dermatitis, malnutrition and so on. Vitamin B₆ tablets in the normal renal function almost does not produce toxicity, but long-term, excessive application of this product can cause severe peripheral neuritis, the appearance of neurosensory abnormalities, gait instability, numbness of the hands and feet. It is contraindicated for those who are allergic to any of the ingredients in this product. Vitamin B6 belongs to vitamin preparations, clinical application is relatively safe, but need to avoid long-term overdose, patients need to be under the guidance of a doctor.