The statins of which Lipitor is part can cause clinical dementia. Stop the Lipitor you stop the dementia. Try using Red Yeast Rice or 1/4 cup of ground flax seed per day. The flax seed has natural lipitor to reduce cholesterol...as with any statin be sure to include CoEnzyme Q10 in your diet.
It's always dicey getting off medications. They're powerful substances. Find a health care practitioner who will listen to you and who has expertise helping you get off Lipitor.