Topiramate is commonly prescribed to people who are trying to lose weight because it has been shown to help reduce appetite and cravings. Topiramate works by increasing the levels of a neurotransmitter called GABA in the brain, which helps to reduce the activity of certain neurons that are associated with hunger and cravings. It has been shown to be effective at helping people lose weight, especially when combined with a healthy diet and exercise routine.
Phentermine, on the other hand, is a stimulant medication that is commonly referred to as an appetite suppressant. It works by increasing the levels of certain neurotransmitters in the brain, including norepinephrine and dopamine, which can help to reduce hunger and cravings. Phentermine has been shown to be an effective medication for weight loss when used in conjunction with a healthy diet and exercise program.