Below are some of the most popular brand names and most effective prescription weight loss pills currently available: Orlistat (Xenical®, Alli®). Orlistat works by preventing your body from ...

A reduced-strength version of orlistat, marketed as Alli, is available without a prescription. A much wider range of prescription diet pills are available in the US. As well as orlistat ...

Slimming pills bought online are "potentially dangerous" and can cause serious health problems, says the UK's medicines watchdog. Side-effects can include heart problems, blurred vision and ...