Someone I know was on lipitor for a year taking 10 mg. a day. He is 40 years old. Prior to taking lipior he was in excellent health with no medical problems. After 2 months on lipitor he started experiencing severe back, neck and leg pain and pain in the head which he described as head fog. He reported this to his doctor who couldn't find anything wrong with him and his doctor not making any association with it being caused by the lipitor referred him to a specialist. The specialist couldn't find anything wrong with him and he started going from specialist to specialist for 9 months for a total of 6 different doctors where none of them could find anything wrong with him and none of them ever made the association with lipitor even though they all knew he was taking it. From my own experience on lipitor and all the problems it caused me I immediately made the association and told him to stop the lipitor. He was very skeptical about my advice since I have no medical training whatsoever and 6 experts along with his own doctor whom he highly trusts never said a word about lipitor being the possible cause. Anyway he followed my advice and to his amazement the head fog immediately cleared up and his back, neck, and leg pain is nowhere near what it was after 2 months off lipitor even though he still has some problems. His doctor said it was impossible for lipitor to be the cause as it has a proven safety record and he never heard of such problems being caused by lipitor and told him he probably never had any problems to begin with is the reason why he got relief and that he should just learn to relax. This just goes to show you that only you are responsible for your own health and you better do your own research before blindly following professional advice as you will be the one to suffer the consequences while the doctors just look the other way denying everything as I found out for myself the hardway.