statin-associated myalgia
Pronunciation: my-AL-jee-ah
Muscle pain or weakness attributed to statin therapy without significant elevation in creatine kinase levels.
Full Definition
Statin-associated myalgia refers to muscle pain, aches, weakness, or cramps that patients attribute to statin therapy, occurring without significant elevation in serum creatine kinase levels (typically <10 times upper limit of normal). This condition represents the most common form of statin-associated muscle symptoms and is often subjective in nature, making diagnosis challenging. Myalgia may be related to statin-induced changes in muscle cell membrane composition, mitochondrial function, or coenzyme Q10 levels. Management strategies include dose reduction, statin switching, intermittent dosing regimens, or alternative lipid-lowering therapies. The condition is distinguished from more severe forms of statin myopathy such as myositis or rhabdomyolysis by the absence of significant muscle enzyme elevation.
Usage
Usage note: Distinguish from myopathy (which implies CK elevation) and myositis (which requires inflammation).
In Context
- "The patient reported statin-associated myalgia that resolved after switching from simvastatin to rosuvastatin." — Clinical follow-up note
- "Statin-associated myalgia affects approximately 5-10% of patients treated with high-intensity statin therapy." — Medical literature review