The high court's 6-3 decision essentially upended moves by the Bush administration to protect drug makers from lawsuits as long as the product was FDA-approved.
Many watchers had predicted that the court would decide the other way, Zipursky said.
"It was a surprise in two respects," he said. People had believed "that whatever the court did, it would rule narrowly and, in fact, the decision is quite broad."
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To learn more about the case, visit the U.S. Supreme Court.
SOURCES: Brian Wolfman, director, litigation group, Public Citizen, Washington, D.C.; Benjamin C. Zipursky, J.D., Ph.D., professor of law, Fordham Law School, New York City, and visiting professor, Harvard Law School, Boston; March 4, 2009, prepared statement, PhRMA; March 4, 2009, press conference, Diana Levine, Vermont