Why is chloramphenicol administration potentially dangerous in newborns, and what syndrome is associated with this risk?

Chloramphenicol administration is potentially dangerous in newborns due to their defective conjugation process, which can lead to toxicity and increased blood levels of the drug. This condition is associated with 'grey baby syndrome', which can result in severe complications or death.

In newborns, the conjugation process necessary for metabolizing chloramphenicol is often not fully developed, leading to an inability to adequately eliminate the drug from their systems. As a result, blood levels of chloramphenicol can rise dangerously high with administration, causing toxicity. This phenomenon is known as 'grey baby syndrome', which historically resulted in circulatory collapse and death in affected infants.