Ferrous Uses

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What is Ferrous?

Ferrous is a type of iron. You normally get iron from the foods you eat. In your body, iron becomes a part of your hemoglobin and myoglobin. Hemoglobin carries oxygen through your blood to tissues and organs. Myoglobin helps your muscle cells store oxygen.

Ferrous is an essential body mineral. Ferrous is used to treat iron deficiency anemia (a lack of red blood cells caused by having too little iron in the body).

Ferrous may also be used for other purposes not listed in this medication guide.

Ferrous indications

An indication is a term used for the list of condition or symptom or illness for which the medicine is prescribed or used by the patient. For example, acetaminophen or paracetamol is used for fever by the patient, or the doctor prescribes it for a headache or body pains. Now fever, headache and body pains are the indications of paracetamol. A patient should be aware of the indications of medications used for common conditions because they can be taken over the counter in the pharmacy meaning without prescription by the Physician.

Prevention and treatment of iron deficiency and iron-deficiency anemias,the complex, which includes Ferrous and amino acid, is characterised by a high absorbability of iron, which results in a rapid resumption of its normal blood level as well as its supplies in the body. The advantage of Ferrous is a possibility to administer low doses as well as a very good tolerance of the preparation

How should I use Ferrous?

Use Ferrous controlled-release capsules as directed by your doctor. Check the label on the medicine for exact dosing instructions.

Ask your health care provider any questions you may have about how to use Ferrous controlled-release capsules.

Uses of Ferrous in details

There are specific as well as general uses of a drug or medicine. A medicine can be used to prevent a disease, treat a disease over a period or cure a disease. It can also be used to treat the particular symptom of the disease. The drug use depends on the form the patient takes it. It may be more useful in injection form or sometimes in tablet form. The drug can be used for a single troubling symptom or a life-threatening condition. While some medications can be stopped after few days, some drugs need to be continued for prolonged period to get the benefit from it.

This medication is an iron supplement used to treat or prevent low blood levels of iron (e.g., for anemia or during pregnancy). Iron is an important mineral that the body needs to produce red blood cells and keep you in good health.

How to use Ferrous

Follow all directions on the product package, or take as directed by your doctor. Do not take more than the recommended dosage. If you have any questions, ask your doctor or pharmacist.

Iron is best absorbed on an empty stomach (usually if taken 1 hour before or 2 hours after meals). If stomach upset occurs, you may take this medication with food. See the instructions below for the liquid drops for infants/children. Avoid taking antacids, dairy products, tea, or coffee within 2 hours before or after this medication because they will decrease its effectiveness.

Take tablets or capsules with a full glass of water (8 ounces or 240 milliliters) unless otherwise directed by your doctor. Do not lie down for 10 minutes after taking your tablet or capsule dose.

Swallow extended-release capsules whole. Do not crush or chew extended-release capsules or tablets. Doing so can release all of the drug at once, increasing the risk of side effects. Also, do not split extended-release tablets unless they have a score line and your doctor or pharmacist tells you to do so. Swallow the whole or split tablet without crushing or chewing.

If you are taking chewable tablets, chew the medication thoroughly, then swallow.

If you are taking a liquid suspension form of this medication, shake the bottle well before each dose.

If you are taking the liquid form for adults, carefully measure the dose using a special measuring device/spoon. Do not use a household spoon because you may not get the correct dose. Mix the dose in a glass of water or juice, and drink the mixture through a straw to prevent staining the teeth.

If you are giving the liquid drops to an infant or child, use the dropper provided to carefully measure the dose. The dose may be placed directly into the mouth (towards the back of the tongue) or it may be mixed in formula (not milk), fruit juice, cereal, or other food as directed to increase your child's acceptance. It is best to give this medication right after a meal. Follow the directions on the product package for the brand that you use.

Take this medication regularly in order to get the most benefit from it. To help you remember, take it at the same time(s) each day.

Ferrous description


A metallic element found in certain minerals, in nearly all soils, and in mineral waters. It is an essential constituent of hemoglobin, cytochrome, and other components of respiratory enzyme systems. Its chief functions are in the transport of oxygen to tissue (hemoglobin) and in cellular oxidation mechanisms. Depletion of iron stores may result in iron-deficiency anemia. Ferrous is used to build up the blood in anemia.

Ferrous dosage

Ferrous Dosage

Applies to the following strength(s): 300 mg/5 mL; 300 mg; 160 mg; (as elemental iron) 45 mg; 525 mg; 325 mg; 195 mg; (as elemental iron) 15 mg/mL; 75 mg/0.6 mL; 90 mg/5 mL; 190 mg; 250 mg; 220 mg/5 mL; 159 mg; 324 mg; (as elemental iron) 15 mg/1.5 mL; 200 mg

The information at Drugs.com is not a substitute for medical advice. Always consult your doctor or pharmacist.

Usual Adult Dose for:

Usual Pediatric Dose for:

Additional dosage information:

Usual Adult Dose for Iron Deficiency Anemia

Initial: 300 to 325 mg of regular-release Ferrous orally once a day.


Regular-release Ferrous: 325 mg orally 3 times a day. Alternatively, 300 mg orally 4 times a day may be given.

Extended-release Ferrous: 160 mg orally 1 to 2 times a day.

Resolution of iron deficiency anemia may require Ferrous supplementation for several weeks or months, depending on the duration and severity of the anemia.

Usual Adult Dose for Anemia Associated with Chronic Renal Failure

Initial: 300 to 325 mg of regular-release Ferrous orally once a day.


Regular-release Ferrous: 325 mg orally 3 times a day. Alternatively, 300 mg orally 4 times a day may be given.

Extended-release Ferrous: 160 mg orally 1 to 2 times a day.

A transferrin saturation of less than 20%, or a serum ferritin level of less than 100 mcg/L suggests inadequate iron stores and a need for iron replacement therapy.

Continued iron replacement therapy is needed in most patients receiving epoetin alfa treatment.

Usual Adult Dose for Vitamin/Mineral Supplementation during Pregnancy/Lactation

325 mg orally once a day.

The CDC has defined anemia during pregnancy as a hemoglobin concentration less than 100 g/L during the first and third trimesters and less than 105 g/L during the second trimester or a hematocrit value of less than 32%.

The recommended daily allowance (RDA) of elemental iron is 30 mg orally during pregnancy and 15 mg orally during lactation.

Usual Adult Dose for Vitamin/Mineral Supplementation

325 mg orally once a day.

The recommended daily allowance (RDA) of elemental iron is 10 mg for adult males, 15 mg for adult, premenopausal women, and 10 mg for postmenopausal women.

Usual Pediatric Dose for Iron Deficiency Anemia

Premature neonates:

2 to 4 mg elemental iron/kg/day divided every 12 to 24 hours (maximum daily dose = 15 mg).

Infants and children less than 12 years:

Prophylaxis: 1 to 2 mg elemental iron/kg/day (maximum 15 mg) in 1 to 2 divided doses.

Mild to moderate iron deficiency anemia:

3 mg elemental iron/kg/day in 1 to 2 divided doses.

Severe iron deficiency anemia:

4 to 6 mg elemental iron/kg/day in 3 divided doses.

Renal Dose Adjustments

No adjustment recommended

Liver Dose Adjustments

No adjustment recommended


Iron supplementation is routinely provided to peritoneal dialysis and hemodialysis patients for prevention or treatment of anemia associated with chronic renal failure.

Other Comments

Recommended Daily Allowance (RDA) of Iron:

1 to 5 months: 5 mg elemental iron

5 months to 10 years: 10 mg elemental iron


11 to 18 years: 12 mg elemental iron

8 years and older: 10 mg elemental iron


11 to 50 years: 15 mg elemental iron

50 years and older: 10 mg elemental iron

Multiple concentrations of Ferrous oral liquid exist. Close attention should be paid to the concentration when ordering and administering Ferrous. Incorrect selection or substitution of one Ferrous liquid for another without proper dosage volume adjustment may result in serious over- or underdosing.

Iron supplements are generally better absorbed on an empty stomach, however, if gastric intolerance occurs, iron may be taken with food.

Liquid formulations of iron may stain teeth and should therefore be administered with a straw.

Accidental overdose of iron-containing products is a leading cause of fatal poisoning in children under 6 years. Keep this product out of reach of children. In case of accidental overdose, call a physician or poison control center immediately.

More about Ferrous

Consumer resources

Professional resources

Related treatment guides

Ferrous interactions

See also:
What other drugs will affect Ferrous?


Simultaneous administration of FS with:

  • drugs providing a depressing effect on the CNS or with ethanol may increase the CNS depressant effects of tramadol;
  • MAO inhibitors are likely development of serotonin syndrome;
  • serotonin reuptake inhibitors, tricyclic antidepressants, antipsychotics, other means of reducing the threshold of convulsive readiness, increases the risk of seizures;
  • warfarin and phenprocoumon increase anticoagulant effect;
  • carbamazepine reduced the concentration of tramadol in plasma and its analgesic effect;
  • paroxetine describes cases of serotonin syndrome, seizures;
  • sertraline, fluoxetine describes cases of serotonin syndrome;
  • opioid analgesics is likely to reduce the analgesic action. Prolonged use of opioid analgesics or barbiturates stimulates the development of cross-tolerance;
  • naloxone activates respiration, eliminating analgesia after opioid analgesics.

    Ferrous side effects

    See also:
    What are the possible side effects of Ferrous?

    Applies to Ferrous: controlled-release capsules, delayed-release tablets, enteric-coated tablets, tablets

    Other dosage forms:

    • drops, elixir, liquid, tablets

    Check with your doctor if any of these most COMMON side effects persist or become bothersome:

    Constipation; dark or green stools; diarrhea; loss of appetite; nausea; stomach cramps, pain, or upset; vomiting.

    Seek medical attention right away if any of these SEVERE side effects occur while taking Ferrous (the active ingredient contained in Ferrous)

    Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); black, tarry stools; blood or streaks of blood in the stool; fever; severe or persistent nausea, stomach pain, or vomiting; vomit that looks like blood or coffee grounds.

    Ferrous contraindications

    See also:
    What is the most important information I should know about Ferrous?

    Hypersensitivity to Ferrous and other ingredients.

    Patients receiving repeated blood transfusions; anaemia not due to iron deficiency.

    Active ingredient matches for Ferrous:

    Ferrous Sulfate in United States.

    List of Ferrous substitutes (brand and generic names)

    Sort by popularity
    Unit description / dosage (Manufacturer)Price, USD
    Tablet, Enteric Coated; Oral; Ferrous Sulfate 300 mg
    Tablet; Oral; Ferrous Sulfate 300 mg
    Tablet; Oral; Ferrous Sulfate 325 mg
    Ferrous Sulfate 324 mg x 1000's
    Ferrous Sulfate tablet, film coated 325 mg/1 (Sun Pharmaceutical Industries, Inc. (US))
    Ferrous Sulfate tablet 325 mg/1 (Qualitest Pharmaceuticals (US))
    Ferrous Sulfate elixir 220 mg/5mL (Rij Pharmaceutical Corporation (US))
    Ferrous Sulfate tablet 65 mg/1 (Boca Pharmacal, LLC (US))
    Ferrous Sulfate Asian Union 200 mg x 1, 000's
    Tablet; Oral; Ferrous Sulfate 300 mg
    Tablet; Oral; Ferrous Sulfate 200 mg
    Tablet; Oral; Iron / Ferrous Sulfate 35 mg
    Ferrous Sulphate tablet 35 mg (Wn Pharmaceuticals Ltd. (Canada))
    Tablet; Oral; Ferrous Sulfate 300 mg
    Liquid; Oral; Ferrous Sulfate 10 d / 1.1 ml
    Liquid; Oral; Ferrous Sulfate 6 d / 1.1 ml
    Liquid; Oral; Ferrous Sulfate 1 x
    Pellets; Oral; Ferrous Sulfate 1 x
    Tablet; Oral; Ferrous Sulfate 1 x
    Globules; Oral; Ferrous Tartrate 1 x
    Granules; Oral; Ferrous Tartrate 1 x
    Liquid; Oral; Ferrous Tartrate 1 x
    Drops; Oral; Ferrous Tartrate 1 dh
    Globules; Oral; Ferrous Tartrate 1 dh
    Granules; Oral; Ferrous Tartrate 1 dh


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    Information checked by Dr. Sachin Kumar, MD Pharmacology

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