Slow Fe 45mg Iron Supplement is the 1 doctor recommended iron supplement for. iron deficiency. Iron is an essential mineral that is needed to make. hemoglobin, the part of red blood cells that delivers oxygen throughout your. body to carry out many important functions. Slow Fe iron supplement tablets. feature a special controlled release system that delivers the high potency. iron you need, while still being gentle on your stomach. Each slow release. iron supplement tablet contains 45mg of elemental iron, which is equal to. 142mg of ferrous sulfate. Simply take one of these easy-to-swallow iron. supplements for anemia each day as recommended by a doctor. Slow Fe daily. vitamin supplements can be taken with or without food, but they're best. absorbed on an empty stomach, either one hour before or two hours after meals. Satisfaction Guarantee If for any reason you are not satisfied with any GSK. Consumer Healthcare product, GSK Consumer Healthcare will provide you with a. reimbursement within 45 days of the date of purchase. Please note that because. GSK is unable to control the quality of our products sold by unauthorized. sellers, the Guarantee is not available for products purchased from. unauthorized sellers due to potential quality issues outside GSK’s control.