Qsymia is a prescription weight loss medication. It is used together with a reduced-calorie diet and increased physical activity to help adults with obesity
Phentermine is an appetite suppressant that works by increasing the levels of certain neurotransmitters in the brain, which makes people feel less hungry. Topiramate is an anticonvulsant that is also thought to have appetite-suppressing effects. It is thought to work by decreasing the production of glucose in the liver, which makes people feel less hungry and more full.
Qsymia (phentermine and topiramate ER) is used for chronic weight management in: Adults: Those who are obese (BMI of 30 kg/m2 or higher) OR those who are overweight (BMI of at least 27 kg/m2) and also have at least one weight-related condition, such as type 2 diabetes, high blood pressure, or high cholesterol.