My husband of 42 years has prostate cancer and MS. His Rebif makes him miserable and iritable. After 15 years, I began Lexipro, an antidepresant. It helps me feel less anxious without noticible side effects. might be worth a try.
I know a man whose wife has very advanced MS, and he likes prosac. It is too bad all around, but there is relief to get through a rough patch in the situation. Good luck.