Lipitor, also known as atorvastatin, is a medication that is used to lower cholesterol levels in the body. While it is generally considered safe and effective, some patients may experience side effects. One potential side effect of Lipitor is muscle pain or stiffness, which can occur in the short term. However, there is limited information on whether Lipitor can cause long-term muscle stiffness.

According to the Mayo Clinic [2], muscle pain and weakness are common side effects of statins, including Lipitor. These symptoms typically occur within a few weeks or months of starting the medication, and they usually go away once the patient stops taking the drug. However, in rare cases, muscle symptoms can persist for months or even years after discontinuing the medication. This condition is known as statin-induced myopathy.

GoodRx [3] suggests that patients who experience muscle pain or stiffness while taking Lipitor should talk to their doctor. In some cases, switching to a different statin medication may help alleviate these symptoms. Additionally, taking a lower dose of Lipitor or taking the medication less frequently may also help reduce the risk of muscle-related side effects.

DrugPatentWatch [1] provides information on the patent status of Lipitor, as well as its history and manufacturer. However, it does not provide information on the medication's side effects.

In conclusion, while muscle pain and stiffness are known side effects of Lipitor, there is limited information on whether the medication can cause long-term muscle stiffness. Patients who experience these symptoms should talk to their doctor to determine the best course of action.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.mayoclinic.org/diseases-conditions/high-blood-cholesterol/in-depth/statin-side-effects/art-20046013
[3] https://www.goodrx.com/classes/statins/muscle-pain-statins-how-to-prevent-common-side-effect