Iron—Oral Preparations

Ferrous sulfate: Fer-In-Sol, Slow FE, Slow Iron, and many generics
Ferrous gluconate: Ferate and generics
Ferrous fumarate: Ferretts, Ferrimin 150, and generics
Polysaccharide-iron complex: EZFE 200, Poly-Iron 150, iFerex 150, NovaFerrum, NovaFerrum Pediatric Drops, and many other brands; previously available as Niferex
Oral iron supplements

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Key
  • Ferrous sulfate (20% elemental Fe):
    • Drops and oral solution (Fer-In-Sol and generics; OTC): 75 mg (15 mg Fe)/1 mL (50 mL); may contain 0.2% alcohol and sodium bisulfite
    • Oral elixir and liquid (OTC): 220 mg (44 mg Fe)/5 mL (473 mL); may contain 5% alcohol
    • Oral syrup (OTC): 300 mg (60 mg Fe)/5 mL
    • Tabs (OTC): 325 mg (65 mg Fe)
    • Extended release tabs (Slow FE, Slow Iron, and generics; OTC): 142 mg (45 mg Fe), 160 mg (50 mg Fe), 324 mg (65 mg Fe), and 325 mg (65 mg Fe)
  • Ferrous gluconate (12% elemental Fe):
    • Tabs (Ferate and generics; OTC): 240 mg (27 mg Fe), 324 mg (37.5 mg Fe)
  • Ferrous fumarate (33% elemental Fe):
    • Tabs (all OTC):
      • Generics: 90 mg (29.5 mg Fe), 324 mg (106 mg Fe)
      • Ferretts: 325 mg (106 mg Fe)
      • Ferrimin 150: 456 mg (150 mg Fe)
  • Polysaccharide-iron complex and ferrous bis-glycinate chelate (expressed in mg elemental Fe):
    • Caps (OTC): 50 mg (NovaFerrum 50), 150 mg (Poly-Iron 150, iFerex 150, and others), 200 mg (EZFE 200); 150 mg strength may contain 50 mg vitamin C
    • Oral liquid (NovaFerrum 125; OTC): 125 mg/5 mL (180 mL); contains sodium benzoate and 100 units cholecalciferol/5 mL
    • Oral drops (NovaFerrum Pediatric Drops; OTC): 15 mg/mL (120 mL); contains sodium benzoate

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