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ATLANTA — An experimental diet pill helped about half the people who tried it lose some weight and keep it off a year later, without the heart problems that some earlier drugs caused, a study found.
Arena Pharmaceuticals’ lorcaserin is one of three drugs that are boosting hope for a new generation of more effective weight-loss medicines.
In the study, lorcaserin caused more people to lose at least 5 percent of their body weight over one year, more than twice the rate achieved by those on dummy pills.
