Lipitor is a brand-name medication that contains the active ingredient atorvastatin, which is used to lower cholesterol levels in the blood. According to Drug Patent Watch [1], the patent for Lipitor expired in November 2011, which means that generic versions of atorvastatin are now available. GoodRx [2] states that Lipitor is covered by most Medicare and insurance plans, but there may be some restrictions based on the dosage and quantity prescribed. It is recommended to check with your insurance provider to confirm coverage and cost. Lipitor's official website [3] offers a savings card program for eligible patients with or without insurance, which can provide savings on the medication. It is important to note that coverage and cost may vary depending on the specific insurance plan and location.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.goodrx.com/lipitor/medicare-coverage
[3] https://www.lipitor.com/en/savings-terms