Multivitamin tablets work by supplementing the body with vitamins and other substances, and are used for the additional need for vitamins and other substances during pregnancy and other periods. Multivitamin tablets are composed of vitamin A, B vitamins, vitamin C, vitamin D3, vitamin E, folic acid, calcium, magnesium, phosphorus, copper, iron, manganese, zinc and other substances. It can supplement the body with vitamins, trace elements and other substances. Multivitamin tablets are used for the extra needs of minerals, vitamins and trace elements of people during pregnancy or breastfeeding, and also to prevent anemia caused by iron and folic acid deficiency during pregnancy. This product may cause constipation, diarrhea, abdominal pain, nausea, vomiting, headache, dizziness, insomnia, nervousness, and other adverse reactions, and in some people may cause excessive excitement. The drug is contraindicated in hypervitaminosis A, hypercalcemia, hypervitaminosis D, renal insufficiency, hypercalciuria, iron utilization disorders, iron accumulation, copper metabolism disorders, and those who are allergic to the product. It should be used rationally under the guidance of a doctor.