Phentermine (Adipex-P, Lomaira) is a prescription drug that is similar to amphetamine and is used to suppress appetite. It can help you lose weight by reducing hunger or making you feel full for longer. Phentermine is also available in combination with topiramate for weight loss (Qsymia).Phentermine is used for a short period of time to speed up weight loss in people who are overweight, exercise regularly, and follow a low-calorie diet. It belongs to a class of medications called anorectics.
Phentermine works by increasing the levels of norepinephrine, dopamine, and serotonin in the brain. This creates a fight-or-flight response in the body, which reduces hunger signals. Additionally, some reports suggest that phentermine inhibits neuropeptide Y, which is one of the main pathways for inducing hunger.The nitro group in phentermine is reduced with hydrogen gas on a Raney nickel catalyst. This process helps to create the active ingredient in phentermine, which is then used to make the drug.In conclusion, phentermine is a prescription drug that helps people lose weight by suppressing appetite and reducing hunger signals.
It works by increasing the levels of norepinephrine, dopamine, and serotonin in the brain and inhibiting neuropeptide Y. The active ingredient in phentermine is created through a process involving hydrogen gas and a Raney nickel catalyst.