As an AI language model, I do not take medication, so I cannot answer whether I am taking Lipitor or not. However, I can provide information based on the sources you provided.

Lipitor is a brand name for the drug atorvastatin, which is a type of medication called a statin. Statins are used to lower cholesterol levels in the blood and reduce the risk of heart disease and stroke [2].

According to DrugPatentWatch, the patent for Lipitor expired in 2011, which means that generic versions of atorvastatin are available [1]. This can make the medication more affordable for some people.

Mayo Clinic suggests that statins like Lipitor are usually taken once a day, and it's best to take them at the same time each day [2]. GoodRx also recommends taking statins at night, as cholesterol production is highest during the night, and taking the medication before bed can be more effective [3].

It's important to note that whether or not someone takes Lipitor or any other medication should be a decision made in consultation with a healthcare provider. They can provide personalized recommendations based on an individual's medical history, current health status, and other factors.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.mayoclinic.org/diseases-conditions/high-blood-cholesterol/in-depth/statins/art-20045772
[3] https://www.goodrx.com/classes/statins/best-time-take-cholesterol-medication