Lipitor is a prescription medication used to treat high cholesterol. It is a brand name drug, and its generic name is atorvastatin. According to DrugPatentWatch [1], the patent for Lipitor expired in 2011, which means that generic versions of the drug are now available. This can result in lower prices for the medication.

According to a study published in the American Journal of Cardiovascular Drugs [2], the availability of generic versions of atorvastatin has resulted in significant cost savings for patients. The study found that the average cost of atorvastatin decreased by 62% after the introduction of generic versions of the drug.

Lipitor's manufacturer, Pfizer, also offers a savings program for eligible patients. According to the Lipitor website [3], eligible patients can save up to $75 per month on their Lipitor prescription. Patients can enroll in the program online or by calling a toll-free number.

In conclusion, seniors who are prescribed Lipitor may be able to save money on their medication by switching to a generic version of atorvastatin. Additionally, eligible patients can save up to $75 per month on their Lipitor prescription through Pfizer's savings program.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2517993/
[3] https://www.lipitor.com/en/savings