Hello: I am a new lactnetter. I sent my first message on 9/11 and have not seen it yet - hope it has gone through. I'll repeat it if a I don't see it by tomorrow. Needed some info on sustained release nifedipine and preterm infants. I have a 34 week infant in our NICU whose mother is receiving 30mg daily. Our Dr. are currently not sure what to do because of the similar classification to Verapamil, which has been associated with a case of sudden cardiac death in a newborn (word of mouth, with no specifics, any one know of this and was it related to breastmilk intake???) Drugs in Pregnancy was limited to plasma levels after a single dose - not repeated dosing. Anyone care to comment or offer specific resources to review? .