I guess most or all of those meds can cause nausea but I'd suspect the Velcade. Have you ever tried ginger? I've heard they make a "ginger beer" and a guy I know who had an allo transplant used that. It's worth a shot anyway.I used to get this ginger candy from the Vermont country store. I woke up with queesiness in the night alot(I think it was my gall bladder). I would nibble a bit of that candy and drink a little cool water and it worked very well.