Making A Weight-Loss Drug That Doesn't Sicken You Is Apparently Difficult

Drug companies and doctors have searched more than six decades for a diet pill that really works and isn't dangerous. A new drug called Qnexa is the latest contender, but critics are raising huge red flags about health risks.

The U.S. Food and Drug Administration is set to decide within weeks whether to okay the drug, billed as the first new weapon to combat obesity in more than a dozen years.

The stakes are enormous. A diet pill that actually helps people lose weight without exposing them to harmful side effects is like the Holy Grail for drug companies hunting for the next blockbuster medication. And rising obesity rates provide a customer base hungry for a quick fix. More t