After reviewing the provided sources, it appears that Lipitor is not an ingredient in any over-the-counter pain medications. Lipitor, also known as atorvastatin, is a prescription medication used to lower cholesterol levels in the blood. It is not used as a pain reliever [2].

The first source provided, Drug Patent Watch, lists Lipitor as a brand name drug, and provides information on its patent status and expiration date [1]. The second source, Lipitor's official website, provides information on the drug's uses, side effects, and dosage instructions [2]. The third source, MedlinePlus, is a reliable source of drug information and provides details on Lipitor's uses, precautions, and potential side effects [3].

In conclusion, Lipitor is not an ingredient in any over-the-counter pain medications. It is a prescription medication used to lower cholesterol levels in the blood. If you have any questions or concerns about pain management, it is recommended to speak with a healthcare professional.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.lipitor.com/
[3] https://medlineplus.gov/druginfo/meds/a600045.html