What is phentermine?
Phentermine is an amphetamine-like prescription medication used to suppress appetite. It comes as an oral capsule, tablet, and a disintegrating tablet.
It acts as a short-term weight loss (a few weeks) treatment for very overweight or obese people with certain health risk factors, including high blood pressure, raised cholesterol and diabetes.
Phentermine is intended for use as part of an overall weight-loss plan such as exercise, behavioural change, and calorie reduction belonging to a class of drugs called anorectics also known as appetite suppressants.
Phentermine works by increasing the release of three chemicals from nerve terminals in your brain, which helps to reduce appetite: norepinephrine, serotonin, and dopamine. When the levels of these chemicals increase, the feeling of hunger decreases, helping you to eat less and therefore, over-time, to lose weight.
It is possible to build a tolerance to the weight loss effects of phentermine within a month or so. If this occurs, the product’s use should stop. Phentermine is FDA approved for short-term use only, as there are no long-term studies on its safety. However, the FDA has approved phentermine (at a lower dose) combined with topiramate for long-term use.