The use of potent antipsychotic drugs to treat children and adolescents for problems like aggression and mood swings increased more than fivefold from 1993 to 2002, researchers reported yesterday. The researchers, who analyzed data from a national survey of doctors' office visits, found that antipsychotic medications were prescribed to 1,438 per 100,000 children and adolescents in 2002, up from 275 per 100,000 in the two-year period from 1993 to 1995. The findings augment earlier studies that have documented a sharp rise over the last decade in the prescription of psychiatric drugs for children, including antipsychotics, stimulants like Ritalin and antidepressants,...