Alcohol is the drug most frequently used by teenagers in the United States. Underage drinking has long been an important issue for family physicians who care for these young patients, and many FPs deal with it on a daily basis in their practices. Now, however, the issue has grown even more significant, as so-called binge drinking has emerged as another common problem among teens. In response to this public health threat, the National Institute on Alcohol Abuse and Alcoholism and the American Academy of Pediatrics have developed a resource designed to prevent alcohol-related problems in teens before they start or to detect these problems at an early stage.