Lipitor is a brand name for the drug atorvastatin, which is used to lower cholesterol levels in the blood. According to DrugPatentWatch [1], the patent for Lipitor expired in 2011, meaning that generic versions of atorvastatin are now available.

It is important to be cautious when taking any medication, including over-the-counter pain medications, in combination with atorvastatin. GoodRx [2] warns that taking atorvastatin with certain medications can increase the risk of side effects, including muscle damage. It is recommended to consult with a healthcare provider before taking any new medications in combination with atorvastatin.

Drugs.com [3] specifically mentions the potential interaction between atorvastatin and Tylenol (acetaminophen). According to the website, taking Tylenol with atorvastatin can increase the risk of liver damage. The recommended maximum daily dose of Tylenol for adults is 3,000 milligrams, and it is important to avoid taking more than this amount when also taking atorvastatin.

In summary, while generic versions of Lipitor are available, it is important to exercise caution when taking any new medications in combination with atorvastatin. Taking Tylenol with atorvastatin can increase the risk of liver damage, and it is recommended to consult with a healthcare provider before taking any new medications in combination with atorvastatin.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.goodrx.com/atorvastatin/interactions
[3] https://www.drugs.com/drug-interactions/atorvastatin-with-tylenol-276-0-11-12.html