[Toxic hemolytic anemia in the newborn infant following ingestion of a phenazone derivative (Cibalgin) via breast milk].

After the administration of Cibalgin (a Phenazone-derivative) to a lactating mother during the first days after delivery, her healthy newborn infant developed a toxic hemolytic anemia with precipitation of globin, forming large inclusion bodies in the erythrocytes. Phenazone was found in the mothers milk up to 8 days after the end of Cibalgin administration. During the acute phase of hemolysis it could also be demonstrated in the infants serum. A list of medicaments that pass into the milk and can cause a toxic hemolytic anemia in the child is included.