I have been on Lipitor for some time now. I was not aware of any side-effects but my LDL was too high and interview with a Cardiologist told me to increase my Lipitor dose of 10 mgms, to 80mgms ( yes 80) He told me that he was party to research that showed 80 mgms could be taken without harm. After discussion with my GP we decided not to follow the Specialists advice and increased to 20mg. My LDL is now normal but I am having changes in my leg muscles, which, after reading your letters has me wondering. The Cardiologist and I have sacked each other. He would do well to read some of these letters.