It works by activating the sympathetic nervous system (“fight or flight”), which is why it is called a “sympathomimetic drug” or stimulant. Phentermine may help reduce appetite, so people who take phentermine tend to eat less. Phentermine is an anorexic drug, which means it is an appetite suppressant. The drug stimulates the release of chemicals or neurotransmitters in the brain.
The neurotransmitters whose levels increase with this drug are norepinephrine, dopamine and serotonin. Phentermine belongs to a class of medications called anorexics, also known as appetite suppressants. Phentermine and Topiramate extended-release (long-acting) capsules are used to help adults who are obese or overweight and have weight-related medical problems lose weight and prevent them from regaining weight. Phentermine and Topiramate extended-release capsules should be used in conjunction with a low-calorie diet and exercise plan.
Phentermine belongs to a class of medications called anorectics. Topiramate belongs to a class of medications called anticonvulsants. It works by decreasing appetite and making the feeling of satiety last longer after eating. Phentermine stimulates certain chemicals in the brain that tell the body that it is full.
This can reduce appetite sooner and help a person eat less. Phentermine is an FDA-approved weight-loss medication for adult weight loss. The main mechanism of action of phentermine is the release of norepinephrine from the brain, which causes appetite suppression, increased energy, and the release and breakdown of fat. Phentermine works best when used with proper nutrition and adequate physical activity and must be monitored by a doctor.