As an ex-obese person, you and I both know that you don't eat because you're hungry, but because you like it / you're bored / any other reason. Hunger-cutting medicine doesn't help with that.

If you are obese you can easily lose 2 pounds a week just by counting calories. I lost 90 pounds in 7 months despite eating burgers, pizza and sweet stuff whenever I wanted, just less than before. No exercising required either (it's good for your overall health, but almost entirely useless for weight loss).