Vitamin A supplementation for extremely-low-birth-weight infants

Intramuscular injections of vitamin A three times a week for several weeks appears to improve lung function in extremely-low-birth-weight babies. These infants have a high risk of lung diseases caused by extreme prematurity. Researchers randomly assigned 807 such infants to receive intramuscular shots of vitamin A or a placebo. Only 55% of the infants who received vitamin A died or developed lung disease compared to 62% of those who received placebo.