According to the sources provided, Lipitor (atorvastatin) is a medication used to lower cholesterol levels and reduce the risk of heart disease and stroke [1]. While the sources do not specifically mention changes in appetite as a side effect of Lipitor, they do list several other possible side effects.

The Mayo Clinic lists common side effects of Lipitor as including headache, muscle aches and pain, and diarrhea [2]. Healthline adds that other possible side effects include nausea, constipation, and stomach pain [3].

It is worth noting that everyone's body reacts differently to medications, so while some people may experience side effects, others may not. Additionally, some side effects may go away on their own after the body adjusts to the medication.

If you have concerns about changes in your appetite or other side effects while taking Lipitor, it is important to speak with your healthcare provider. They can help determine if the medication is still appropriate for you and if any adjustments need to be made to your treatment plan.

Sources:
[1] DrugPatentWatch - https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] Mayo Clinic - https://www.mayoclinic.org/drugs-supplements/atorvastatin-oral-route/side-effects/drg-20067003
[3] Healthline - https://www.healthline.com/health/drugs/lipitor-side-effects