My OB prescribed this for me for "bacterial vaginosis." He knows I breastfeed my 2 1/2 year old and is supportive of that.
The pharmacist told me that the manufacturer recommends that breastfeeding mothers wean or choose a different drug (!!!).
I've looked online and found at motherrisk and other places, the recommendation that 2 g (my dosage) all at once is fine - with a suggestion to wait 12-24 hours after ingestion before nursing again. Some places don't make the 'wait' recommendation, others do. Motherrisk doesn't.
Apparently the concern is that some studies showed it to be 'mutagenic' (although it's not believed to be so for humans). And that it caused in one infant some severe lactose intolerance, weight issues etc. (makes one wonder whether there's a way to know that it was the culprit?). Most of the information says not to worry, that it's regularly prescribed on preterm infants with no adverse side effects, in amounts larger than pass in mother's milk to the baby, anyway.
But there are a few mentions that it may make (does make?) breastmilk taste bad/bitter.
I think I can manage 12 hours without nursing without any adverse effects for dd2 - she goes that long some days on her own. But will my milk taste bitter? I don't want to inadvertantly cause her to accelerate her weaning!!
Any suggestions? Any experiences? We already take probiotics, since the girls have allergies. So she and I should be somewhat armed for the havoc which a large dose of abx will cause.
ETA: The 12-24 hour wait following the 2 g dose I've been prescribed, is recommended by the AAP.
Not all who wander are lost.