You may have tried everything, but nothing seems to work. You might feel constantly hungry and not satiated. Many people find suppressing their appetite an effective way to lose weight. This is because you won't feel hungry so you don’t eat as often. As part of our monitored appetite suppression programs, Livewell Medical Clinic & Weight Loss Center can prescribe and recommend safe and effective medication. Adipex, also known by its brand name as Phentermine (brand name), is a diet drug that helps obese people lose weight. Phentermine helps you lose weight by suppressing your appetite. It also gives you an increase in energy to work out and burn fat.