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Ferrous Fumarate Dosage

Medically reviewed by Drugs.com. Last updated on Aug 11, 2023.

Applies to the following strengths: 325 mg; 90 mg; 300 mg; 100 mg; 100 mg/5 mL; 45 mg/0.6 mL; 200 mg; 350 mg; 150 mg; 324 mg; 63 mg

Usual Adult Dose for Iron Deficiency Anemia

Initial dose: 360 mg/day ferrous fumarate (120 mg/day elemental iron) for 3 months

Usual Adult Dose for Anemia Associated with Chronic Renal Failure

Initial dose: 600 mg/day ferrous fumarate (200 mg/day elemental iron) orally in divided doses (1 to 3 times daily)

Comments:

Usual Adult Dose for Vitamin/Mineral Supplementation

Initial dose: 1 tablet orally once a day

or

Initial dose: 18 to 54 mg/day ferrous fumarate (6 to 18 mg/day elemental iron) orally, in divided doses (1 to 3 times daily)

51 and over: 15 to 24 mg/day ferrous fumarate (5 to 8 mg/day elemental) orally, in divided doses (1 to 3 times daily)

Usual Pediatric Dose for Iron Deficiency Anemia

0 to 5 years: 9 to 18 mg/kg/day ferrous fumarate (3 to 6 mg/kg/day elemental iron)
5 to 12 years: 180 mg ferrous fumarate (60 mg/day elemental)
12-18 years male: 360 mg ferrous fumarate (120 mg elemental) orally daily
12-18 years female: 180 to 360 mg/day ferrous fumarate (60 to 120 mg/day elemental)

Usual Pediatric Dose for Vitamin/Mineral Supplementation

Preterm infant (less than 37 weeks gestation), 0 to 12 months: 6 mg/kg/day ferrous fumarate (2 mg/kg/day elemental iron)
0 to 6 months: 0.6 to 0.81 mg/day ferrous fumarate (0.2 to 0.27 mg/day elemental)
7 to 12 months: 21 to 33 mg/day ferrous fumarate (7 to 11 mg/day elemental)
1 to 3 years: 12 to 27 mg/day ferrous fumarate (4 to 9 mg/day elemental)
4 to 8 years: 12 to 30 mg/day ferrous fumarate (4 to 10 mg/day elemental)
9 to 13 years: 18 to 24 mg/day ferrous fumarate (6 to 8 mg/day elemental)
14 to 18 years: 24 to 45 mg/day ferrous fumarate (8 to 15 mg/day elemental)


or

Tablets (324 to 325 mg ferrous fumarate, 106 mg elemental iron)
12 years and older: 1 tablet orally once a day

Renal Dose Adjustments

No adjustment recommended

Liver Dose Adjustments

No adjustment recommended

Dose Adjustments

Vitamin supplementation/Prevention of anemia:
14 to 18 years: Pregnancy: 69 to 81 mg/day ferrous fumarate (23 to 27 mg/day elemental iron)
14 to 18 years: Lactation: 21 to 30 mg/day ferrous fumarate (7 to 10 mg/day elemental)
19 to 50 years: Pregnancy: 66 to 81 mg/day ferrous fumarate (22 to 27 mg/day elemental)
19 to 50 years: Lactation: 19.5 to 27 mg/day ferrous fumarate (6.5 to 9 mg/day elemental)
Maximum dose: 135 mg ferrous fumarate (45 mg/day elemental)

Treatment of anemia:
Pregnancy: 180 to 360 mg ferrous fumarate (60 to 120 mg/day elemental)

Precautions

US BOXED WARNING(S):


Consult WARNINGS section for additional precautions.

Dialysis

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

Other Comments

Administration advice:


Patient advice:

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.