Lipitor is a medication used to lower cholesterol levels, while painkillers such as ibuprofen are used to alleviate pain. According to the sources provided, it is generally safe to take Lipitor and painkillers together, but caution should be exercised.

DrugPatentWatch [1] states that Lipitor's patent has expired, and there are several generic versions of the drug available. However, it does not provide any information on the drug's interaction with painkillers.

Drugs.com [2] provides information on the interaction between ibuprofen and Lipitor. It states that taking ibuprofen with Lipitor may increase the risk of side effects such as stomach bleeding and kidney problems. It is recommended to take the lowest effective dose of ibuprofen for the shortest duration possible while taking Lipitor.

The NHS [3] also provides information on the interaction between Lipitor and other medications. It states that certain medications such as erythromycin and clarithromycin may increase the levels of Lipitor in the blood, increasing the risk of side effects. It is recommended to inform your doctor if you are taking any other medications before starting Lipitor.

In conclusion, it is generally safe to take Lipitor and painkillers together, but caution should be exercised. It is recommended to take the lowest effective dose of painkillers for the shortest duration possible while taking Lipitor. It is also important to inform your doctor if you are taking any other medications before starting Lipitor.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.drugs.com/drug-interactions/ibuprofen-with-lipitor-1310-0-276-128.html
[3] https://www.nhs.uk/medicines/atorvastatin/taking-atorvastatin-with-other-medicines-and-herbal-supplements/