You may have Ketek in your medicine cabinet to treat a number of problems from sinusitis to pneumonia.
That antibiotic will be wearing a stronger warning label next time to buy it. That's because the FDA says four people have died from liver failure after taking Ketek and 23 others have suffered serious liver injury.
Experts say Ketek will stay on the market because the risk of liver failure is rare. But the FDA is advising doctors and patients on Ketek to watch for signs of liver disease, which would include fatigue, loss of appetite, yellow skin or dark urine.