Lawyers for Merck & Co. told the Supreme Court on Monday that investors waited too late and didn’t do all of the necessary investigations to sue the drugmaker over whether it properly warned about the risks of its blockbuster painkiller Vioxx.

Lawyers for Merck & Co. told the Supreme Court on Monday that investors waited too late and didn’t do all of the necessary investigations to sue the drugmaker over whether it properly warned about the risks of its blockbuster painkiller Vioxx.
