This drug is probably okay during breastfeeding. Yes, a little will get into the milk, but as usual, only a tiny amount, unlikely to cause problems for the baby. Once again, one must ask, why this drug, though? What advantage does it have over ciprofloxacin, for example, or, even better, ofloxacin (an Irish drug)? Probably, because it is newer it is more expensive, and because it is newer, there is less clinical experience with it. Physicians have got to start prescribing with the nursing mother in mind. Then there would be fewer drug questions. Unfortunately, the train of thought goes: "I am going to prescribe drug x (because the drug rep convinced me it's the bee's knees). The mother cannot breastfeed unless we find out it's okay". The train of thought should go: "I am going to prescribe drug x (because the drug rep convinced me it's the bee's knees). But wait, I don't know if it's compatible with breastfeeding, so I will prescribe drug y, which is just as good, cheaper, known to cause few side effects, and *known to be compatible with breastfeeding*." Jack Newman, MD, FRCPC