Phentermine is a stimulant similar to an amphetamine. Phentermine is an appetite suppressant that affects the central nervous system. Phentermine is used together with diet and exercise to treat obesity (overweight) in people with risk factors such as high blood pressure, high cholesterol, or diabetes. Phentermine may also be used for purposes not listed in this medication guide.
Adipex-P is a brand name of the drug phentermine, a stimulant that is used as an appetite suppressant. The drug has similar effects to amphetamines and is used as a weight loss aid under medical supervision. It is to be used in combination with a healthy diet.