Pfizer, a company that makes medicine, did very well last year. They made a lot of money selling Covid products and cutting costs. This helped them recover from losing money in the past. Their earnings and revenue in the fourth quarter beat what experts were expecting. This means they did even better than people thought they would. They made $17.76 billion in revenue, which is a lot of money. Their Covid products, like the antiviral pill, Paxlovid, did really well. They also made money from other medicines they sell, like drugs for cancer and heart problems. Pfizer is also working on a new weight-loss pill, which people are excited about. Overall, Pfizer is doing great and making a lot of money. Investors and experts are keeping an eye on how well Pfizer will do in the future with new medicines.