Cancer Survivors Network

My mother in law has recurrent ovarian cancer. She has just completed another round of carbo/taxol, but on her CT scan "significant disease burden still exists" She says that she is having pain in her joints and muscles for which she is getting Physical Therapy. She has no appetite, is having trouble sleeping and cannot even do her activities of daily living. This normally vibrant individual is turning down invites to dinner, etc. She really is wondering if it is all worth it. She has stated that she is depressed, sometimes, and anxious about the future. This is making me wonder if she needs to try a mood elevator. Has anyone tried this? I just think it might help. We have tried everything else. We need to make some good memories for the time she has left.....which may be a long time. No one knows.