Lipitor is a commonly prescribed medication used to lower cholesterol levels in the body. It belongs to a class of drugs called statins, which work by inhibiting an enzyme that plays a key role in cholesterol production [1].

Regarding the potential side effect of weight gain, the sources you provided do not specifically mention weight gain as a common side effect of Lipitor. However, it is important to note that individual responses to medications can vary, and weight gain may occur in some cases.

According to the drug patent information provided, weight gain is not listed as a common side effect of Lipitor [1]. Additionally, the Medical News Today article on Lipitor does not mention weight gain as a side effect [2]. The Healthline article also does not list weight gain as a common side effect of Lipitor [3].

It is worth mentioning that weight gain is a complex issue and can be influenced by various factors such as diet, exercise, and individual metabolism. If you are concerned about weight gain while taking Lipitor, it is recommended to consult with your healthcare provider. They can provide personalized advice and evaluate whether Lipitor is the cause of any weight changes you may be experiencing.

In conclusion, based on the sources provided, weight gain is not commonly associated with the use of Lipitor. However, individual responses to medications can vary, and it is important to discuss any concerns or changes in weight with your healthcare provider.

Sources:
[1] Drug Patent Watch. Lipitor. Retrieved from: https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] Medical News Today. Lipitor: Uses, dosage, side effects, and more. Retrieved from: https://www.medicalnewstoday.com/articles/lipitor
[3] Healthline. Lipitor (Atorvastatin): Side Effects, Dosages, Treatment, Interactions, Warnings. Retrieved from: https://www.healthline.com/health/drugs/lipitor-side-effects