Lipitor and Crestor are both statins, which are medications used to lower cholesterol levels. According to GoodRx [2], both drugs are available in generic form, atorvastatin for Lipitor and rosuvastatin for Crestor. In terms of cost, Lipitor is generally considered a cheaper alternative to Crestor. As of 2021, the average retail price for a 30-day supply of Lipitor is around $10-$15, while Crestor costs around $250-$300 for the same supply [2]. This price difference is due to the fact that Lipitor's patent expired in 2011, making it available in generic form, while Crestor's patent expired in 2016 [1]. However, it is important to note that the cost of both drugs may vary depending on factors such as insurance coverage, dosage, and location. In terms of effectiveness, both drugs have been shown to be effective in reducing cholesterol levels, but individual responses may vary [3]. Ultimately, the choice between Lipitor and Crestor should be made in consultation with a healthcare provider, taking into consideration factors such as cost, effectiveness, and potential side effects.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.goodrx.com/classes/statins
[3] https://www.singlecare.com/blog/crestor-vs-lipitor/