Merck failed to properly communicate health risks of its drug Vioxx before and after recall. Studies in 2000 showed increased heart attack risks but Merck downplayed this. In 2004, a trial showed double heart attack risk with long term use, leading to recall. Merck's communication was ineffective - doctors learned from patients and hotlines were jammed. While Merck withdrew the drug swiftly, it did not express regret or prioritize health communication over legal and financial concerns. This case shows the challenges of balancing priorities during a drug recall crisis.