Is orlistat safe to be used especially if my diet is healthy and i train vigorously 2 to 3 hours per day for 4 to 5 days per week?

Orlistat: Orlistat is indicated for weight loss when combined with a reduced calorie diet and moderate exercise. A "healthy" diet may not be a reduced calorie diet. A rigorous exercise programmer exceed limits. In other words, before entering into a stressful medicine/diet/exercise program, see your General Physician for a complete physical examination.