Lipitor, also known as atorvastatin, is a medication used to lower cholesterol levels in the body [1]. According to Healthline, common side effects of Lipitor include muscle and joint pain, diarrhea, and nausea. However, the website does not mention cravings as a side effect of the drug [2].

In terms of weight gain, Lipitor is not known to cause weight gain. In fact, it is often prescribed alongside lifestyle changes such as diet and exercise to help individuals lose weight and improve their cholesterol levels [2].

If you are experiencing cravings or any other side effects while taking Lipitor, it is important to discuss this with your doctor. They may be able to adjust your dosage or switch you to a different medication to better suit your needs [2].

It is also worth noting that metformin, a medication commonly used to treat type 2 diabetes, may cause weight loss as a side effect [3]. However, this medication should only be taken under the guidance of a healthcare professional and is not typically prescribed for weight loss alone [3].

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.healthline.com/health/drugs/lipitor-side-effects
[3] https://www.everydayhealth.com/type-2-diabetes/treatment/metformin-weight-loss-truth-behind-side-effect/