The Food and Drug Administration slapped its strongest warning on Plavix, a popular pill to prevent blood clots in people with heart disease. The problem: the drug may not work in some people.

If you're taking Plavix to prevent a heart attack or stroke, lay off the Prilosec, the Food and Drug Administration says. It turns out that the popular heartburn pill Prilosec cuts the ...

Federal health officials said Tuesday a popular variety of heartburn medications can interfere with the blood thinner Plavix, a drug taken by millions of Americans to reduce risks of heart attack ...