A growing body of evidence suggests that doctors at some of the nation’s top medical schools have been attaching their names and lending their reputations to scientific papers that were drafted by ghostwriters working for drug companies - articles that were carefully calibrated to help the manufacturers sell more products.

Newly unveiled court documents show that ghostwriters paid by a pharmaceutical company played a major role in producing 26 scientific papers backing the use of hormone replacement therapy in women, suggesting that the level of hidden industry influence on medical literature is broader than previously known.

Federal regulators added stronger warnings to a group of best-selling drugs used to treat arthritis and other inflammatory diseases, saying they can increase the risk of cancer in children and adolescents.

Drug maker Wyeth, in the process of being acquired by Pfizer, reported a quarterly profit that was better than analysts predicted and also raised its full-year earnings guidance.

Shareholders of drugmaker Wyeth have voted overwhelmingly to be acquired by industry giant Pfizer.

Federal health regulators said Tuesday they are adding new labeling about the risks of infection to organ transplant drugs made by Roche, Novartis and other drugmakers.

Government experts called for sweeping safety restrictions Tuesday on the most widely used painkiller, including reducing the maximum dose of Tylenol and eliminating prescription drugs such as Vicodin and Percocet.

The Food and Drug Administration is focusing on a seldom-discussed side effect of the medications with acetaminophen: severe liver damage.

One year after urging regulators to guide Lehman Brothers toward a recapitalization and recognition of its losses, hedge fund manager David Einhorn is making more potentially prescient speeches—this time about ratings agencies and gold.