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Common types of myopathy due to statins include myalgia, myositis, and rhabdomyolysis. Statins induce myopathy by inhibiting protein synthesis within the muscle. [6] Statin therapy tends to not show any histopathological differences, and thus a biopsy does not reveal too much about the damage. Often, the damage is found within the mitochondria.
Statin-associated autoimmune myopathy (SAAM), also known as anti-HMGCR myopathy, is a very rare form of muscle damage caused by the immune system in people who take statin medications. [1] However, there are cases of SAAM in patients who have not taken statin medication, and this can be explained by the exposure to natural sources of statin ...
One of the most common types of drugs that can cause myositis are statins, which are used to lower cholesterol levels. One of the most common side effects of statin therapy is muscle pain [5] which, more rarely, can lead to myositis. [5] Infection - The most common infectious cause of myositis is viral infections, such as the common cold. [4]
Muscle pain and other symptoms often cause patients to stop taking a statin. [87] This is known as statin intolerance. A 2021 double-blind multiple crossover randomized controlled trial (RCT) in statin-intolerant patients found that adverse effects, including muscle pain, were similar between atorvastatin and placebo. [ 88 ]
Atorvastatin, sold under the brand name Lipitor among others, is a statin medication used to prevent cardiovascular disease in those at high risk and to treat abnormal lipid levels. [6] For the prevention of cardiovascular disease, statins are a first-line treatment. [ 6 ]
Statins may sometimes cause myalgia and cramps among other possible side effects. Raloxifene (Evista) is a medication associated with a high incidence of leg cramps. Additional factors, that increase the probability of these side effects, are physical exercise, age, history of cramps, and hypothyroidism .
Spastic hypertonia involves uncontrollable muscle spasms, stiffening or straightening out of muscles, shock-like contractions of all or part of a group of muscles, and abnormal muscle tone. It is seen in disorders such as cerebral palsy, stroke, and spinal cord injury. Rigidity is a severe state of hypertonia where muscle resistance occurs ...
The most common cause of acute myalgia is the overuse of a muscle or group of muscles; another likely cause is viral infection, especially when there has been no injury. Long-lasting myalgia can be caused by metabolic myopathy , some nutritional deficiencies , ME/CFS , fibromyalgia , and amplified musculoskeletal pain syndrome .