Management of Statin-Associated Muscle Symptoms

Initial Assessment and Management

The American College of Cardiology recommends temporarily discontinuing the statin to determine if there is a causal relationship between the statin and the symptoms, and measuring creatine kinase (CK) levels to assess for muscle damage 1, 2
Statin-associated muscle symptoms occur in approximately 5-10% of patients taking statins, according to the American College of Cardiology 3
The American College of Cardiology suggests evaluating for other conditions that might increase risk for muscle symptoms, such as hypothyroidism, reduced renal/hepatic function, and vitamin D deficiency 2, 4

The American College of Cardiology recommends temporarily discontinuing simvastatin and checking CK levels to assess for muscle damage 1, 2
After symptom resolution, the American College of Cardiology suggests waiting until muscle symptoms completely resolve, typically within 2 weeks, before considering rechallenge with the same statin at a lower dose or different dosing schedule, or trying a different statin 1, 2

The American College of Cardiology identifies risk factors for SAMS, including advanced age (>65 years), female sex, small body frame, multisystem disease, polypharmacy, and perioperative periods 3, 5
The American College of Cardiology recommends considering non-statin lipid-lowering therapies, such as ezetimibe or PCSK9 inhibitors, if statin therapy cannot be tolerated despite multiple attempts 4, 5

The American College of Cardiology advises against permanently discontinuing statin therapy without establishing causality or attempting rechallenge 2
The American College of Cardiology emphasizes the importance of checking CK levels in patients with muscle symptoms and avoiding combinations of statins with medications that increase myopathy risk 2, 5