RT Journal Article SR Electronic T1 Chloramphenicol and phenobarbitone--a drug interaction. JF Archives of Disease in Childhood JO Arch Dis Child FD BMJ Publishing Group Ltd and Royal College of Paediatrics and Child Health SP 76 OP 77 DO 10.1136/adc.54.1.76 VO 54 IS 1 A1 Bloxham, R A A1 Durbin, G M A1 Johnson, T A1 Winterborn, M H YR 1979 UL http://adc.bmj.com/content/54/1/76.abstract AB Two infants with meningitis who were treated with phenobarbitone and high-dose chloramphenicol showed progressive falls in the peak blood levels of chloramphenicol. A standard chloramphenicol dose of 50 mg/kg daily would have produced subtherapeutic blood levels after only a few days. The importance of measuring serial blood chloramphenicol concentrations is stressed.