Phentermine At Work
Scientists insist that phentermine, as the most of the other prescribed medications, works with neurotransmitters in the brain (specifically, the hypothalamus gland - a region of the brain that controls the autonomic nervous system, regulating sleep cycles, body temperature, appetite, etc) to decrease patient's appetite. The neurotransmitters signal a fight-or-flight response in the body which actually puts a halt to the hunger signal. As a result of this activity, phentermine causes appetite loss because the brain does not receive the hunger messages.
In complex scientific terms, for those who really want to know more about phentermine and its effects, we can say that phentermine is a centrally-acting stimulant by its chemical structure related to amphetamines, which stimulates neuron bundles to release a specific group of neurotransmitters (known as catecholamines), including dopamine, epinephrine (you know this as adrenalin), and norepinephrine (noradrenaline). The anoretic activity seen with these compounds would seem likely because to this effect on Central Nervous System, which corresponds to the current knowledge about Central Nervous System and feeding behavior. For you to know, this mechanism of action is the same as other stimulant appetite suppressants, for example diethypropion or phendimetrazine.