What is Orlistat?
Orlistat, Alli and Xenical are treatments to help you lose weight, to be taken with a low fat diet. They all work in the same way, to boost weight-loss by lowering the amount of dietary fat that you absorb when you eat. They’ll usually only be prescribed if you have a BMI (body mass index) of 28 or more, or if you’re overweight and have other health conditions – such as type 2 diabetes or obstructive sleep apnoea .
There are three different weight loss medications that use the active ingredient orlistat: Alli, Orlistat and Xenical. Alli comes as a 60mg dose, which you can buy over-the-counter from pharmacies or online. Xenical and Orlistat both come in 120mg doses, and you’ll need to get a prescription for them.