A Pilot Study on the Effect of Vitamin D Treatment in Patients With Statin-Associated Myalgia

Inclusion Criteria: * Men and women who are between the ages of 18 and 88 years old * A muscle symptom defined as any of the following: Myalgia (muscle aches with normal CK); Myopathy (muscle aches with increased CK up to 5 times above the upper limit of normal); or Myopathy for the purpose of further evaluation (muscle aches with increased CK up to 5 times the upper limit of normal) Exclusion Criteria: * Women who are pregnant, breastfeeding or planning to become pregnant * Morbidly obese with a BMI \>40 kg/m2 * Travel to southern states, areas near the Equator, etc., or use of artificial tanning beds, such that study participants have increased sunlight/UV rays exposure in the past 30 days or at any point during the trial * Currently (within the last 2 weeks) using any of the following supplements: Vitamin D-3 (Cholecalciferol) of more than 400 IU orally daily, which would not exclude typical multi-vitamin use; Vitamin D-2 (Ergocalciferol); Calcitriol; or Coenzyme Q10 * Documented to be hyperglycemic or laboratory results show hyperglycemia prior to randomization * Renal dysfunction defined as glomerular filtration rate less than 60 mL/min. * Documented to have parathyroid abnormalities or parathyroid hormone laboratory results show the study participant is outside of the normal limits