Gray baby syndrome is a serious medical condition that can occur in newborn babies who are given high doses of the antibiotic chloramphenicol. This condition causes the baby's skin to turn gray, the blood pressure to drop and for the baby to become unresponsive. It is important for healthcare professionals to be aware of the potential symptoms of this condition and to monitor newborn babies for any signs of gray baby syndrome. Other synonyms for gray baby syndrome include chloramphenicol toxicity, neonatal chloramphenicol toxicity syndrome, and chloramphenicol poisoning. It is essential that this condition is recognized and treated promptly to prevent serious complications.