My doctor has started me back on Asacol after I stopped it myself as soon as I found out I was pregnant. I heard it was safe to take during pregnancy but since I haven't had a flare in years and was only taking it as maintenance thought I would be fine without it. Throughout my pregnancy I had no issues but one month after giving birth I started having UC symptoms that I haven't had for years. Now I am breastfeeding and have reluctantly started back on Asacol. It is considered category "B" and safe while nursing but they warn of the possibility of the nursing infant getting diarrhea. I have seen an increase in his BM's but nothing of concern. I am more curious to know if other women have any experience nursing while on UC meds? My three month old seems to be more cranky lately and not sleeping nearly as well. I realize it could be any number of normal baby developmental issues but since it seems to correspond with exactly when I started the Asacol, so I am feeling a little paranoid. I found almost nothing online. If anyone could shed some light, I would really appreciate it.