After 30 days on a statin, with muscle aches and cramps, I switched to Zetia (a non-statin) at the suggestion of Mrs D - and brought my levels down from 230-240 range to 130-140 range.
That was about 4 years ago, or so - and I've been taking it ever since, with no side effects whatsoever. I did have to argue with my doc and demand that she allow me to try it initially, as she is a true believer in the positive work of statins on cholesterol levels. But I did change her mind on that.