Methadone???

You might also make sure you have someone to care for your 4 year old as he won't be allowed into the nicu with you to see the baby. My understanding is that the clinic is supposed to adjust moms dose as pregnancy progresses to ease the withdrawl effects. Hopefully someone will chime in with the info on the organization for tetraology (or whatever it is called!). They are supposed to give great info over the phone about drug use during pregnancy and be generally very helpful!