RT Journal A1 Goldstein LH, Berlin M, Kozer E, Berkovitch M T1 STill wary of rectal acetaminophen—reply JF Archives of Pediatrics & Adolescent Medicine JO Archives of Pediatrics & Adolescent Medicine YR 2009 FD May 4 VO 163 IS 5 SP 491 OP 492 DO 10.1001/archpediatrics.2009.82 UL http://dx.doi.org/10.1001/archpediatrics.2009.82 AB We thank Drs Ousterhoudt and Henretig for their comments. The American Academy of Pediatrics' recommendation to refrain from rectal acetaminophen was based on pharmacokinetic studies showing great variation of peak levels of acetaminophen administered rectally, often not achieving therapeutic levels, with longer time to peak concentrations.1 Our meta-analysis showed that pharmacodynamic variables, such as temperature reduction, were similar with rectal and oral administration.2