If a pill was that fantastic, and something that natural really worked, scientists would have already found it, sold it on and made a massive profit. All doctors would advise it over anything else and all other pills would stop bein made.
Fact is aside from the (what I call) fat laxatives (make you erm, excrete fat if you consume anything with fat in) which only work somewhat- they don't get rid of sugar or all excess calories so will always only work partially, there are no known pills that trim the fat straight off your body.
Healthy diet, low in calories and plenty of exercise. There really is no other way other then the simple equation: calories going in need to be less then calories comming out. Then and only then will you lose weight. Consuming less is the best way forward.