Lipitor, also known as atorvastatin, is a medication primarily used to lower cholesterol levels and reduce the risk of heart-related conditions. While weight gain is not a common side effect of Lipitor, some individuals may experience weight changes as a result of factors like diet, exercise, and metabolism. It is important to note that maintaining a healthy lifestyle, including a balanced diet and regular exercise, is crucial for overall well-being and weight management. If you have concerns about weight changes while taking Lipitor, it is advisable to consult with your healthcare provider for personalized advice and guidance.

Sources:
[1] drugpatentwatch.com
[2] mayoclinic.org
[3] medicalnewstoday.com