As others have said, yes Pediasure is something you can put in the g-tube. A lot of older kids do Pediasure at night for their enteral feeds.Is there a reason why they want Peptamin at night and Pediasure during the day though - I would think your insurance would not pay for both since they are pretty much the same thing - although I have never tasted Peptamin, maybe it doesn't taste good?