In the context of statin monotherapy, the frequency of myopathy is ~1/1,000, and the frequency of rhabdomyolysis is ~1/100,000. The frequency increases with dose [7,8]. Clinicians often measure serum CK levels, as parameter of severity, but the correlation between symptoms and CK level is incomplete. Therefore, the clinical interpretation of CK level is complex. Elevations less than three-fold ...