Drug reference
carbonyl iron
Iron preparation · Haematinic
Iron preparationHaematinicATC B03AA10
CDSCO approvedATC B03AA10
EXCRETION
—
not curated
INTERACTIONS
—
none in our sources
PREGNANCY
C
FDA category + note
Mechanism
High purity metallic iron in fine powder form, absorbed from intestines to provide elemental iron for hemoglobin synthesis.
Indications
Iron deficiency anaemia
Dosing
- Adult
- 200 mg elemental iron daily in 3 divided doses; Prophylactic dose is 30 mg iron daily
- Pediatric
- 3–5 mg/kg elemental iron daily in 3 divided doses
Pharmacokinetics
Bioavailability
about 3/4th that of ferrous sulfate
Side effects
Common
gastric tolerance may be betterEpigastric painheartburnnauseavomitingbloatingstaining of teethmetallic tastecolicConstipationdiarrhoea
Pregnancy & lactation
Pregnancy
C
Related guidelines
Other Iron preparation drugs
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Sources: KD Tripathi 7e·Verified: 2026-05-10 · House clinical team