Lipitor is a brand name for the drug atorvastatin, which is used to lower cholesterol levels and reduce the risk of heart disease [2]. While weight gain is not listed as a common side effect of Lipitor, it is possible that some individuals may experience weight changes while taking the medication.

In fact, some studies have suggested that statins, including Lipitor, may cause weight gain in some patients [3]. However, the evidence is mixed, and other studies have found no significant association between statin use and weight gain [3].

It is important to note that any changes in weight while taking Lipitor may be due to other factors, such as changes in diet or exercise habits, rather than the medication itself. Patients who are concerned about weight changes while taking Lipitor should speak with their healthcare provider to determine the cause and discuss potential solutions [2].

In summary, while weight gain is not a common side effect of Lipitor, some studies suggest that it may cause weight gain in some patients. However, other factors may also be at play, and patients should speak with their healthcare provider if they are concerned about weight changes while taking Lipitor.

Sources:
[2] https://www.healthline.com/health/drugs/lipitor
[3] https://www.medicalnewstoday.com/articles/lipitor
[4] https://www.drugpatentwatch.com/p/tradename/LIPITOR