Phentermine 37.5mg is considered one of the best choice medicines among people and is mostly prescribed by doctors for weight loss. Phentermine is used for weight loss in patients with obesity. People who are unable to lose weight with lots of exercise and dieting are recommended to use this medicine. This medicine works by making you feel less hungry and suppressing your appetite. There is less chance of addiction to this medicine. You can buy this medicine with your doctor’s prescription.