Intramuscular administration of iron, given at the time a weight of 2,100 grams is reached, is as effective as oral use of iron in the treatment of the late anemia of prematurity.
No toxicity or untoward side effects were noted when iron was given intramuscularly in the manner and dosage described.
Intramuscular administration of iron is preferred when follow-up of infants after discharge from the nursery is difficult. Where follow-up is assured, orally administered iron remains the treatment of choice. (See Addendum.)
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