Just a second, who says it's contraindicated?  According to the information
I have found, the oral bioavailability of this drug is so low, that it is
not likely to get to the baby at all, and even if it did, the baby would
also absorb only a tiny amount of whatever managed to get into the milk.
Furthermore, if you check Hale, you will see that blood levels are
undetectable, in the patient.  If there is none in the blood, it ain't gonna
get into the milk even if there were 100% absorption from the gut, which
there ain't.

Jack Newman, MD, FRCPC