"A few individuals in government expressing concern can't equal the marketing power of large companies," said a former U.S. Drug Enforcement Agency official, regarding stimulants prescribed for children with "attention deficit hyperactivity disorder" (ADHD). Leading ADHD researcher Dr. William Pelham says McNeil Pharmaceuticals, which manufactures the stimulant Concerta, uses "misleading" marketing campaigns and has pressured Pelham to "water down" his writing.

"McDonald's had a great story to tell, and we weren't telling it," said Mike Donahue, McDonald's U.S. communications head. In 2002, Donahue "held a summit of the 125 PR firms that work with McDonald's and its various owner-operators," encouraging them to promote company-financed studies on the chain's positive economic impact.

Last December, researchers involved with studying the use of antidepressants in children faced questions as federal regulators looked into evidence that the drugs increased suicide risks. The researchers tried "for months to gather all the test data," writes Barry Meier, but "could get only pieces of that information. Some drug companies refused to turn over data to the group, even though these researchers had helped come up with it. ...