By the way, my D3 and D2, 25-OH levels at the end of November 2012 were 42 and <4, respectively. An endnote said the reference ranges have not been established.

So can you boil it down on the 40mg of Lipitor? I not only have the PN problem I am also experiencing significant memory loss. Other than cut my dosage in half with a pill cutter (my cardiologist told me as recently as a year or so ago that I should stay on the 40mg dosage) and take the CoQ10, what else should I do? Is damage already done irreversable?

I would think it boils down to your initial cholesterol levels, and if you have already had a cardiovascular event before starting Lipitor.

If you are borderline, do not have blocked arteries already, you are not in a bad place to start with.

40mg of Lipitor is a significant amount. Some patients see lower LDLs on only 5mg of Lipitor a day!

Here are studies on geriatric patients:

Dr. Beatrice Golomb MD has done the most work with geriatric patients on statins:

http://www.kpbs.org/news/2012/jun/12...owering-stati/

https://www.statineffects.com/info/

http://www.theheart.org/article/1412605.do

You can search Dr. Golomb and find research articles going back several years. She specializes in older patients, who are seriously impacted with side effects from statins, and who may do better without them.