Phentermine (prescription only)
In 1959 phentermine first received approval from the FDA as an appetite suppressing drug. It became available in the early 1970s. It is classified as a Schedule IV controlled substance by the DEA under the Controlled Substances Act. It is by prescription only.
Phentermine, in doses clinically used, works on the hypothalamus portion of the brain to release norepinephrine, a neurotransmitter or chemical messenger that signals a fight-or-flight response, reducing hunger. Phentermine works outside the brain as well to release epinephrine or adrenaline causing fat cells to break down stored fat.
Phentermine is used along with a doctor-approved, reduced-calorie diet, exercise, and behavior change program to help you lose weight. Losing weight and keeping it off can reduce the many health risks that come with being overweight, including heart disease, diabetes, high blood pressure, and a shorter life.
Many patients are surprised at how effective Phentermine is in reducing hunger. The use of Phentermine opens a window of opportunity to slowly adjust a patients nutritional habits leading to long-term success.