Lipitor and Crestor are both medications that are used to treat high cholesterol levels in the body. They are both statins, which work by reducing the amount of cholesterol that is produced in the liver. However, there are some differences in their cost.

According to DrugPatentWatch [1], Lipitor's patent expired in 2011, which means that generic versions of the medication are available. This has led to a decrease in the cost of Lipitor. On the other hand, Crestor's patent expired in 2016, but there are currently no generic versions available [2]. This means that Crestor is still relatively expensive compared to Lipitor.

GoodRx [3] provides a comparison of the prices of the two medications. According to their data, the average retail price for a 30-day supply of Lipitor (generic version) is around $10, while the average retail price for a 30-day supply of Crestor is around $260. This is a significant difference in cost.

Drugs.com [4] also provides a comparison of the two medications. According to their data, the average retail price for a 30-day supply of Lipitor (generic version) is around $10-$15, while the average retail price for a 30-day supply of Crestor is around $260-$300.

In conclusion, Lipitor is significantly cheaper than Crestor. This is due to the availability of generic versions of Lipitor, which has led to a decrease in its cost. Crestor, on the other hand, is still relatively expensive due to the lack of generic versions available. It is important to note that the actual cost of these medications may vary depending on factors such as insurance coverage and pharmacy discounts.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.goodrx.com/blog/crestor-is-now-available-as-a-generic-heres-what-you-need-to-know/
[3] https://www.goodrx.com/compare/rosuvastatin-vs-atorvastatin
[4] https://www.drugs.com/compare/crestor-vs-lipitor