Anti-obesity drugs/medication are used as pharmacological mediators which lessen or control weight. These drugs alter one of the essential processes of the human body or weight regulation by changing either appetite or absorption of calories. The treatment for obese individuals and overweight is controlling diet and more physical activity. The idyllic anti-obesity drug would produce continued weight loss with negligible side effects. The mechanisms that control energy balance have substantial built-in is sacking, overlap significantly with other physiological functions, and are prejudiced by social and psychological factors that bound the efficiency of pharmacological happening.