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Lipitor, also known as atorvastatin, is a medication commonly prescribed to lower cholesterol levels and reduce the risk of heart disease [1]. There is limited information available specifically regarding the effects of Lipitor on range of motion. However, some studies have explored the potential musculoskeletal side effects of statins, the class of drugs to which Lipitor belongs.

One study published in the Archives of Internal Medicine found that statin use was associated with an increased risk of muscle pain and stiffness, known as myalgia [2]. Myalgia can potentially affect a person's range of motion, but the study did not specifically investigate this connection.

Another study in the Journal of Rheumatology found that statin use was associated with an increased risk of muscle damage, known as rhabdomyolysis [3]. Rhabdomyolysis can lead to severe muscle weakness and decreased range of motion. However, this side effect is rare and typically occurs at higher doses of statins.

It is important to note that Lipitor and other statins have been shown to be safe and effective for most people when used as directed [1]. If you are experiencing muscle pain or decreased range of motion while taking Lipitor, it is recommended that you speak with your healthcare provider. They can help determine whether the medication may be contributing to your symptoms and suggest alternative treatment options if necessary.

In summary, while there is limited information specifically regarding the effects of Lipitor on range of motion, some studies have suggested that statin use may be associated with an increased risk of muscle-related side effects. If you have concerns about your range of motion while taking Lipitor, it is recommended that you speak with your healthcare provider.

Sources:

1. "Atorvastatin (Oral Route)" Mayo Clinic. <https://www.mayoclinic.org/drugs-supplements/atorvastatin-oral-route/side-effects/drg-20069030>.
2. "Statin Therapy and Musculoskeletal Symptoms: A Prospective Study" Arch Intern Med. <https://jamanetwork.com/journals/jamainternalmedicine/fullarticle/217514>.
3. "Risk of rhabdomyolysis associated with the use of statins: a population-based study" J Rheumatol. <https://www.jrheum.org/content/31/12/2341>.