Infants born to narcotic addicts are more likely than other children to exhibit a variety of problems, including perinatal complications, prematurity, and low bih weight. The onset of withdrawal commonly occurs during an infant's first 2 days of life and is characterized by hyperirritability and coarse tremors, along with vomiting, diarrhea, fever, high-pitched cry, and hyperventilation; seizures and respiratory depression are less common.The production of surfactant can be accelerated in the infant of a heroin-addicted mother.