Over-the-counter pain relievers such as Tylenol and Advil will carry new, bolder warnings about the risk of liver damage or stomach bleeding, the Food and Drug Administration said Tuesday.

Products containing acetaminophen, such as Johnson & Johnson's Tylenol, will carry a prominent package warning about the risk of severe liver damage if consumers take too much of the drug or take it with too much alcohol.

Separately, other painkillers known as non-steroidal anti-inflammatory drugs, or NSAIDS, will carry bold warnings about the risk of stomach bleeding, the FDA said. Such drugs include Bayer AG's aspirin products, Wyeth's Advil and Johnson & Johnson's Motrin.