The claim in this passage is that this drug helps people lose more weight than diet and exercise alone. This is supported by the results of the clinical trials, which show that 48 percent of people taking the drug lost some weight, while only 23 percent of people not taking the drug lost weight. There is no mention in the passage of exercise and diet helping people lose more weight than the drug, of overweight adults always having high blood pressure, or of the drug not helping people lower their blood pressure if they already exercise.