By preventing certain chemicals from being reabsorbed into the brain cells after a meal, the patient will experience the feeling of being full for longer. In one placebo controlled study, patients on Xenical lost on average twice as much compared to patients on placebo over a 52 week period. It achieves this by preventing the action of an enzyme known as lipases in the stomach. Acomplia, Xenical and Reductil are prescription only medication. Both Xenical and Reductil have undergone several clinical trials which have proven that, if used in conjunction with a reasonable lifestyle, they can help patients lose weight. A free online consultation with a HealthExpress doctor will tell you if prescription slimming pills could be something for you. After 12 months the group using Reductil sustained a net weight loss of 5.2 kg. Prescription slimming pills can also be prescribed for people with a BMI above 28 who is suffering from a condition where their weight puts their health at risk such as certain heart conditions. Read here more about Reductil. The patients on placebo gained 0.5 kg in the same period. HealthExpress offers you to complete a free online consultation which is reviewed by a GMC registered doctor. The result is that patients will experience the feeling of being full easier thus wanting to eat less than normally. Prescription only slimming pills Certain slimming pills require a doctor's prescription; at the moment in the UK there are three such pills: Phentermine, Xenical and Reductil. All patients were on the same diet. In one Reductil study two groups of patients were studied. Free Online Consultation For Acomplia, Reductil and Xenical Do they work? The email also contains a link back to HealthExpress.co.uk from where you can purchase Xenical or Reductil. Read here more about Acomplia.