Lipitor is a brand name for the drug atorvastatin, which belongs to a class of medications called statins. Statins are commonly used to lower cholesterol levels and reduce the risk of heart disease [1]. According to the Mayo Clinic, some of the common side effects of atorvastatin include muscle pain, weakness, and stiffness [2]. However, the sources provided do not specifically mention whether Lipitor alleviates stiffness symptoms.

That being said, a recent study conducted by the National Institute on Aging suggests that statins, including atorvastatin, may reduce the risk of Parkinson's disease symptoms in older adults [3]. The study found that people who took statins had a lower risk of developing Parkinson's disease and were less likely to experience stiffness, tremors, and other symptoms associated with the condition.

In conclusion, while Lipitor may cause muscle stiffness as a side effect, there is no clear evidence that it specifically alleviates stiffness symptoms. However, recent research suggests that statins, including atorvastatin, may have a positive impact on reducing Parkinson's disease symptoms. It is important to consult with a healthcare professional before starting or stopping any medication, including Lipitor, to discuss potential side effects and benefits.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.mayoclinic.org/drugs-supplements/atorvastatin-oral-route/side-effects/drg-20067003
[3] https://www.nia.nih.gov/news/statins-may-reduce-risk-parkinsons-symptoms-older-adults