Qsymia (phentermine/topiramate) is used in combination with a reduced-calorie diet and increased physical activity to reduce excess body weight and maintain weight reduction long term in adults and pediatric patients aged 12 years and older with obesity, and overweight adults with at least one weight-related comorbid condition. Qsymia is a combination of topiramate and phentermine, a sympathomimetic anti-epileptic drug, which mimics neurotransmitters in the brain to reduce appetite. The most common form of Qsymia is a 7.5mg/46mg capsule. It is also available as a 3.75mg/23mg capsule, a 11.25/69mg capsule, and a 15mg/92mg capsule. There are currently no generic alternatives for Qsymia. It is covered by some Medicare and insurance plans, but manufacturer and pharmacy coupons can help offset the cost. Get Qsymia for as low as $149.10, which is 43% off the average retail price of $260.40 for the most common version, by using a GoodRx coupon.