A multivitamin by definition is a preparation intended to serve as a dietary supplement with vitamins, dietary minerals, and other nutritional elements. Such preparations are available in the form of tablets, capsules, pastilles, powders, liquids, or injectable formulations. Multivitamin with iron and fluoride is a combination medicine used in infants and children who do not get enough fluoride in their drinking water. It is worth noting that Iron is a mineral that helps maintain your body's red blood cells. As for Fluoride, it helps prevent tooth decay in people who have a low level of fluoride in their drinking water. Remember that you should not use Multivitamin with iron and fluoride without a doctor's advice. Besides, you need to check with your local water department if you are unsure about the level of fluoride in the drinking water, considering it is not recommended that you use this medicine if there is enough fluoride in your drinking water. As a matter of fact, it is still not known whether this medicine will harm an unborn baby. Therefore, you must tell your doctor if you are pregnant or plan to become pregnant, because your dose needs may be different during pregnancy. Additionally, multivitamin with iron and fluoride can pass into breast milk and may harm a nursing baby. In rare cases, this medicine may discolor your tooth enamel. This has occurred mainly with large doses or long-term use. Therefore, you must stop using multivitamin with iron and fluoride and call your dentist or doctor at once if you notice any change in the appearance of your teeth.