These links go specifically to Dr. Hale's response regarding 6MP and b/f-ing:
http://66.230.33.248/discus/messages/41/1474.html?1155071504
http://66.230.33.248/discus/messages/41/47751.html?1175543416
This link is to his main site where you can search any other med you might need info on:
http://neonatal.ama.ttuhsc.edu/cgi-bin/discus/discus.cgi?pg=topics&access=guest
I have read/heard that 6mp is contraindicated for nursing. I have not nursed while taking it and probably would not based on the info I have found. If you feel good about bottle feeding then go for it. All baby formula is regulated by the FDA and has the nutrients that babies need. So, no need to buy the $$$$ stuff. The walmart or target brands are just as good and half the price!