Lipitor is a brand name for the drug atorvastatin, which is primarily used to lower cholesterol levels and reduce the risk of heart disease [1]. While weight loss is not a direct effect of Lipitor, it may indirectly contribute to weight loss in some cases. One of the side effects of Lipitor is gastrointestinal disturbances such as diarrhea, nausea, and abdominal pain, which may lead to decreased appetite and subsequent weight loss [2]. Additionally, people who take Lipitor to manage high cholesterol levels may adopt healthier lifestyle habits such as exercising and eating a balanced diet, which can lead to weight loss [3]. However, it is important to note that Lipitor should only be taken under the supervision of a healthcare professional and should not be used solely for weight loss purposes [2].

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