The Royal Women's Hospital here in Melb has a really good drug information line that I've rung a couple of times to check things about some meds I'm on. You get to talk to pharmacists who only deal with issues around drugs and pregnancy, BF etc and they are the most up to date with the latest research etc. They've been really helpful and supportive. Maybe the women's hosp in Perth has a similar service?? If not, it might be worth a few $ to call the RWH here in Melb to ease your mind. I'll find the direct number if you like.

Your OB needs a good slapping for making you feel like this!!