NAC 500 mg 3X (three times a day)
Selenomethionine 200 mcg 2X for a month, then 1X
Alpha lipoic acid 150 mg 2X
B complex with active B12 and folate 1X
Vitamin C 1000 mg 3X
Magnesium 200 mg 3X
Zinc picolinate 50 mg 1X
There is likely better help available, but this should get your friend started.