Hi momsonhd, There have been several discussions on this topic because many of us suffer from the same problem. Here's some links to several of those that you might want to check out.http://ihatedialysis.com/forum/index.php?topic=9783.0http://ihatedialysis.com/forum/index.php?topic=11387.0http://ihatedialysis.com/forum/index.php?topic=6983.0http://ihatedialysis.com/forum/index.php?topic=352.0Hopefully you'll find some information in one of these threads that you can discuss with your mom's doctor.