We have tried milk shakes using pediasure or boost. Ice cream between meals (daughter really likes that one). Unfortunately my daughter did not even gain weight when she took a med break and ate ice cream 2-3 times a day after meals. This is not due to the med as much as it is due to her metabolism.
Please keep the ideas coming, we could use the help.
There have been several posts during recent months suggesting smoothies, and members have told how they make them. I imagine that they could still be found with a search. Many people also give their children Carnation Instant Breakfast, although my daughter has never liked this (she takes Adderall XR, and has had problems keeping weight on). I have also used Pediasure. Multiple vitamins have also seemed to help with her. Our daughter also suggested letting her have all the ice cream that she wants between meals. This has seemed to help more than anything, and we seem to be getting beyond some of the weight issues.