My father has been very forgetful, he forgets what year we are in etc. Today the neuro prescribed him the memory patch, I thinks it's the exelon patch. Has anyone tried this patch? Any side affects? Thoughts? These patches are really expensive, almost $400 and I'm thinking of trying out a more holistic natural form & have him take a tablespoon of coconut oil, which I hear has reversed early stages of Alzheimer's.