Taking a drug called exenatide twice a day for about four months helps obese women who don’t have diabetes lose around 2.5 kilograms on average, and they start seeing results in just two weeks.

Some women who are obese but don’t have diabetes lose a good amount of weight on a drug called exenatide for 16 weeks, but almost as many actually gain weight — showing it works very differently from person to person.

Even if obese women lose weight on a drug called exenatide, their metabolism doesn’t slow down like it usually does when people lose weight from dieting — so this drug might skip the usual 'metabolic slowdown' people hit.

Taking a drug called exenatide for 16 weeks helps obese women who don’t have diabetes lose about 1.7 cm from their waist, even if they don’t change their diet or exercise.

Lots of obese women who aren't diabetic feel nauseous when they start taking a drug called exenatide for weight loss — about 56 out of every 100. But the queasiness usually gets better over time, and how much weight they lose doesn’t seem to depend on how bad the nausea is.