Vitamin B1’s role function is to maintain normal glucose metabolism and the function of the nervous and digestive systems, prevention and treatment of vitamin B1 deficiency. Vitamin B1 is the name of a western drug, a vitamin drug. Vitamin B1 is involved in the formation of coenzymes in the body, and can maintain normal glucose metabolism and the function of the nervous and digestive systems. Inadequate intake of vitamin B1 can lead to vitamin B1 deficiency, and severe deficiency can lead to “foot fungus” and peripheral neuritis. The recommended dose of vitamin B1 is almost non-toxic, but overdose may cause headache, fatigue, irritability, lack of appetite, diarrhea, swelling and other symptoms. It is recommended that you take the medication as prescribed by your doctor.