Buy Phentermine Online 30 mg For Quick Fatloss, Closer to your weight loss goals. Great quality and affordable price.Phentermine is used to treat obesity and severe obesity in adults, adolescents and children ages 6 years and older. It assists in weight loss by increasing the body's metabolism so that it burns calories more efficiently. The drug works by raising levels of chemicals in your body called adenylate cyclase enhancers (ACEs).