Rodney Whyte from the Drug Info Centre at Monash is awesome, and provides info via phone and email on drugs during pregnancy and breastfeeding.
Mr Rodney Whyte
T: (03) 9594 2361
F: (03) 9594 6595
Or find a drug info person closer to you here http://www.shpa.org.au/scripts/cgiip...ms.r?PageId=27
LactMED is a database of research of effects of medcations on breastfeeding.