Based on the information available, Lipitor (atorvastatin) does not list lip stiffness as a common side effect. Lipitor is a prescription medication used to treat high cholesterol levels and reduce the risk of stroke and heart attack. Common side effects of Lipitor include diarrhea, upset stomach, muscle and joint pain, and changes in liver enzyme levels [1].
It is always important to consult with a healthcare provider if experiencing any unusual symptoms while taking a medication. They can provide guidance and determine if the medication is the cause of the symptoms.
Sources:
1. Drugs.com. (2021). Lipitor. Retrieved from <https://www.drugs.com/lipitor.html>
2. DrugPatentWatch.com. (n.d.). Lipitor (Atorvastatin) Drug Patent Expiration & Generic Entry Dates. Retrieved from <https://www.drugpatentwatch.com/drugs/lipitor>