Fer-In-Sol is a liquid iron supplement. If I have to make sense of the name then I would guess that Fer is from ferrum/ferrous for iron, and Sol in chemistry means a liquid solution which has fine particles of a solid mixed into it. So Fer-In-Sol seems to mean iron in liquid solution. The liquid form is iron supplement seems to be the easiest to absorb by the body, as compared to other forms of supplements e.g. tablets,syrup, or powder. Our doctor prescribed our son to take Fer-In-Sol after blood-test found him to be anemic. Drinking too much cow milk (more than 24 oz) in a day has been linked iron deficiency (cow's milk hampers iron absorption in body and cow's milk itself is low in iron so the more milk the child drinks the less room will be there for other food that are good sources of iron.) We had to ask our doctor specifically for iron test. Our neighbours had told us that they themselves had to ask explicitly for an iron test and found out that their son had anemia as well. Fer-In-Sol comes with a child-resistant safety cap (that needs to be pressed down in order to open) and a dropper that can also be screwed on top of the bottle. The dropper also has the safety mechanism as well. DOSAGE: Accidental overdose of iron containing products is a leading cause of fatal poisoning in children under 6. Because of the risks and severe side-effects of iron overdose, it is highly recommend to refer the Doctors advise as to how much and if iron supplementation is needed. Our doctor asked us to use two droppers per day. Generally children require between 7-11 mg of iron daily, but because iron absorption is difficult the doctor may prescribe a higher dose than the recommended dietary allowance. DIRECTIONS Even thought Fer-In-Sol has natural flavours, it still doesn't taste good at all. Our doctor had advised us to mix it with juice. We mix the iron supplement with apple juice and use the syringe that comes with Tylenol to feed the supplement to out son. It is recommended to take this in early morning with empty stomach. Also, taking it with juices that conatin Vitamin C is also beneficial since Vitamin C aids in absorption of iron. SIDE EFFECTS Taking supplemental iron has some side-effects (even if taking in quantity prescribed by doctor.) Iron supplement usually causes Constipation and bowel movement to be of darker color (almost black.) It can also result in abdominal pain. Therefore it is recommended to drink lots of fluids while on iron supplements. If the child is suffering from iron overdose, he may experience severe vomiting, diarrhea, bluish skin, or general weakness. Therefore it is quite necessary to not overdo it and follow the advise of doctor