B vitamin B complex tablets, urine bright yellow may be a normal phenomenon, if the drug can not be improved after stopping, it may also be caused by other factors such as liver and gallbladder disease. B-complex vitamin tablets contain more riboflavin, which may lead to yellow urine, stop taking a period of time, the urine will change to normal. Complex vitamin B tablets orally, through the digestive system digestion and absorption into the blood, after metabolism part of the product may exist pigment deposition in the urine, does not belong to the state of disease, is normal. Intake of vitamin B complex tablets should be appropriate, if a large number of intake of vitamin B complex tablets, in the body can not be effectively used, will show urine for yellow, and the more you take, the more yellow urine color. The above situation, do not need to worry too much, you can go to the hospital to improve the urine routine, if there is no abnormality, is a normal situation. Vitamin B complex tablets are mainly used for the treatment of malnutrition caused by the lack of B vitamins, foot fungus, pellagra, etc., if large doses may appear irritability, fatigue and other adverse reactions, for daily supplementation, if used as a drug, need to consult a doctor. Note that the product is prohibited when there is a change in shape. If you stop taking vitamin B complex tablets, the urine is still persistently yellow, you need to be alert to other liver and gallbladder diseases, it is recommended to consult a doctor in a timely manner, improve the relevant examination, and follow the doctor’s instructions for symptomatic intervention.