I use Simvador without any side effects. Advice from the Consultant was to go back if I suffered side effects and she would prescribe an alternative statin or an alternative non-statin that reduced cholesterol. Don't be put off by the scare stories, I was bothered with the volume of apparently unhappy chappies posting on the web but at the end of the day I reasoned that there are more people taking the tablets and not reporting side effects than those who have problems - the silent majority. But remember, if you do suffer from any side effect go back to the Doc/Consultant and ask for an alternative.
The good:bad ratio on my last test was 2:1.