Hi Cheryl, According to my dh-the-pharmacist-in-the-family, once the mother has completely woken up from the general anesthesia, it is essentially out of her system, including out of the bm should there be any in there. The interesting thing I find is that many anesthesiologists will tell moms to pump & dump for 24 hours after surgery with general anesthesia, completely ignoring the fact that moms that have a general for a C/Section bf as soon as they are awake & feeling up to it! Also, at our hospital, many moms have tubals immediately after delivery with a general, and the babies aren't prevented from nursing once the mom is out of recovery. Jan B.