As an expert in the field of weight loss, I am often asked about the best medications for losing weight quickly. While there are many options available, not all of them are approved by the FDA for chronic weight control. However, there are six prescription drugs that have been approved for long-term use: orlistat (Xenical, Alli), phentermine-topiramate (Qsymia), naltrexone-bupropion (Contrave), liraglutide (Saxenda), semaglutide (Wegovy), and tirzepatide (Zepbound). These medications have shown to be effective in helping individuals lose weight and keep it off.
However, it's important to note that they should be used in conjunction with a healthy diet and exercise program.