Lipitor is a brand-name medication that contains the active ingredient atorvastatin, which is used to lower cholesterol levels and reduce the risk of heart disease. According to the sources provided, there are several generic versions of Lipitor available, and they may have similar side effects as the brand-name drug.

One source [2] lists the following common side effects of atorvastatin, which may also be present in generic versions of Lipitor:

- Headache
- Muscle pain
- Joint pain
- Diarrhea
- Upset stomach
- Mild skin rash

However, the same source [2] notes that not all patients will experience these side effects, and some may have no side effects at all. Additionally, some patients may experience more serious side effects, such as liver damage, muscle breakdown, or an allergic reaction. Patients should speak with their doctor if they experience any unusual symptoms while taking Lipitor or a generic version of the drug.

Another source [3] notes that some generic versions of Lipitor may be more likely to cause side effects than others, depending on the specific formulation and manufacturer. However, the source does not provide specific information on which generic versions of Lipitor may have more side effects than others.

Overall, it appears that Lipitor generics may have similar side effects to the brand-name drug, but the specific side effects and their severity may vary depending on the patient and the specific generic version of the drug. Patients should speak with their doctor or pharmacist if they have any concerns about the potential side effects of Lipitor or its generic versions.

Sources:
[2] Everyday Health. Lipitor (Atorvastatin). Retrieved from https://www.everydayhealth.com/drugs/lipitor
[3] Medical News Today. Lipitor: Uses, Dosage, Side Effects, and Alternatives. Retrieved from https://www.medicalnewstoday.com/articles/lipitor
[1] Drug Patent Watch. Lipitor Tradename Information. Retrieved from https://www.drugpatentwatch.com/p/tradename/LIPITOR