Drugmaker Shire reports that an experimental medication significantly reduced defiant, angry behavior in kids with ADHD in a recent study. The drug--called Intuniv--lowered "oppositional symptoms" like resentment, defiance, and argumentativeness in children when measured by three different rating scales. Shire, who also make the stimulant Adderall, say Intuniv is not as habit-forming as other ADHD medications, since it is not a stimulant. The company submitted Intuniv to the U.S. Food and Drug...