You should not use  ferrous gluconate if you have hemochromatosis, hemosiderosis, or hemolytic anemia.
Before taking this medicine
You should not use ferrous gluconate if you are allergic to it, or if you have:
iron overload disorder (hemochromatosis, hemosiderosis); or
hemolytic anemia (caused by the breakdown of red blood cells).
To make sure ferrous gluconate is safe for you, tell your doctor if you have ever had:
ulcerative colitis;
stomach ulcers or similar stomach problems;
thalassemia (a genetic disorder of red blood cells); or
if you receive regular blood transfusions.
Ask a doctor before using this medicine if you are pregnant or breast-feeding. Your dose needs may be different during pregnancy or while you are nursing.
Ferrous gluconate is not approved for use by anyone younger than 18 years old.
How should I take ferrous gluconate?
Use this medication exactly as directed on the label, or as prescribed by your doctor. Do not use it in larger amounts or for longer than recommended.
Take ferrous gluconate on an empty stomach, at least 1 hour before or 2 hours after a meal.
Ferrous gluconate may be taken with food if it upsets your stomach.
Take  ferrous gluconate with a full glass of water or juice.
Measure liquid medicine with the dosing syringe provided, or with a special dose-measuring spoon or medicine cup. If you do not have a dose-measuring device, ask your pharmacist for one.
Do not crush, chew, or break an extended-release tablet. Swallow the pill whole.
Ferrous gluconate can stain your teeth, but this effect is temporary. To prevent tooth staining, mix the liquid form of ferrous gluconate with water or fruit juice (not with milk) and drink the mixture through a straw. You may also clean your teeth with baking soda once per week to treat any tooth staining.
Ferrous gluconate may be only part of a complete program of treatment that also includes a special diet. Follow the diet plan created for you by your doctor or nutrition counselor. Get familiar with the list of foods you should eat to make sure you get enough iron in your diet.
Store at room temperature, away from moisture and heat.
What happens if I miss a dose?
Take the missed dose as soon as you remember. Skip the missed dose if it is almost time for your next scheduled dose. Do not take extra medicine to make up the missed dose.
What happens if I overdose?
Seek emergency medical attention or call the Poison Help line at 1-800-222-1222 if you think you have used too much of  ferrous gluconate, or if a child has accidentally swallowed it. An overdose of ferrous gluconate can be fatal to a child.
Overdose symptoms may include drowsiness, severe nausea or stomach pain, vomiting, bloody diarrhea, coughing up blood or vomit that looks like coffee grounds, shallow breathing, weak and rapid pulse, cold or clammy skin, blue lips, and seizure (convulsions).
