#2. question: a pregnant patient w/ twins went into preterm labor several times before she delivered. Each time she was tocolyzed w/ IV MgSO4.(Magnesium sulfate) and after each tocolysis she noticed copious colostrum leaking the next day or two. She reported her breasts felt fuller, even somewhat harder. This fullness dissipated ofter a day or 2, as did the leaking. I've been thinking of the possible mechanisms: any labor is induced by endogenous oxytocin, which also causes the milk ejection reflex. but her experience is not the norm. Why?? What's happening?? Nicki Ward