Vitamin B1 and B2 can be taken together. Vitamin B1 and vitamin B2 are both micronutrient substances needed by the human body, and both taken in moderation at the same time generally do not produce side effects. Vitamin B1, also known as thiamine or anti-neurontin, is the first water-soluble vitamin discovered, synthesized by fungi, microorganisms and plants, mainly used for foot and neurontin diseases, etc., but also to maintain the body’s normal metabolism. Vitamin B1 is widely found in cereals, legumes and dried fruits, animal offal, lean meat, poultry eggs and so on. It should be noted that vitamin B1 like acid and fear of alkali does not tolerate high temperature, can not be combined with aspirin, alkaline drugs and pCms containing tannin. Vitamin B2, also known as riboflavin, is a kind of B vitamins, slightly soluble in water, in neutral or acidic solution heating is stable, easy to be digested and absorbed. It is mainly used in the treatment of stomatitis, labial inflammation, scrotal inflammation, etc. It can also be used in the treatment of malnutrition and progressive weight loss due to insufficient nutrition and intake outside the whole gastrointestinal tract. It is widely found in animal liver, kidney, egg yolk, eel, and milk. It should be noted that vitamin B2 should not be taken at the same time with metoclopramide, sleeping pills, etc., and also should not be taken on an empty stomach, and the urine after taking it is yellowish-green in color.