The full name of B vitamin tablets is B complex vitamin tablets, which are mainly used for the treatment and prevention of diseases caused by B vitamin deficiencies, such as malnutrition and rough skin. Vitamin B complex tablets mainly contain ingredients such as vitamin B₁, vitamin B₂, vitamin B₆, niacinamide and calcium pantothenate. Clinically, it is mainly used for the treatment and prevention of discomfort caused by vitamin B deficiency, and common symptoms include poor appetite, malnutrition, foot odor, and rough skin. However, it should be noted that B complex vitamin tablets should not be overdosed, overdose will increase the chance of adverse reactions. Irritability, fatigue and loss of appetite can occur with large doses. Occasionally, skin flushing and itching are seen. Urine may be yellow in color. It is contraindicated for those who are allergic to the product and should be used with caution by allergic individuals. If during the period of taking vitamin B complex tablets or obvious physical discomfort, you should immediately consult a doctor, the use of drugs, it is recommended that the patient under the guidance of the doctor to follow the medical advice, so as not to cause physical discomfort.