My Mother Has Alzheimer's And Is On Carb/levo, Ropinirole, Amantadine,

my mother has alzheimer's and is on carb/levo, ropinirole, amantadine, doneticil and paroxetine (she also has parkinson's). She found an ad for provasil to help memory problems, and I was concerned that provasil could counter act her prescription med's. Is provasil safe to take (even if it doesn't help, it might make her feel better)?