Hey there, There is a subset of mothers who are rapid metabolizers of the medication. If you head to LactMed (http://toxnet.nlm.nih.gov/cgi-bin/sis/htmlgen?LACT) and search "codeine" you will find the details and references. Jenny Thomas www.drjen4kids.com *********************************************** Archives: http://community.lsoft.com/archives/LACTNET.html Mail all commands to [log in to unmask] To temporarily stop your subscription: set lactnet nomail To start it again: set lactnet mail (or [log in to unmask]) To unsubscribe: unsubscribe lactnet or ([log in to unmask]) To reach list owners: [log in to unmask]