You may want to try supplementing with CoQ10.
There is some evidence it may reduce side effects from conventional treatment with cholesterol-lowering drugs called statins, which reduce natural levels of CoQ10 in the body. Taking CoQ10 supplements can bring levels back to normal. Plus, studies show that CoQ10 may decrease the muscle pain associated with statin treatment.--
http://www.umm.edu/altmed/articles/c...q10-000295.htm
Google on CoQ10 +statins or statin myopathy treatment
I've been using CoQ10 for several months now and when I call on the legs for some extra in a sprint to when climbing, they answer the call and respond. This was an effect I experienced after a couple of weeks.