The Food and Drug Administration proposed ending the use of a common ingredient in many popular over-the-counter cold and allergy medications because it doesn't actually relieve nasal congestion. The ...

Does phenylephrine work? Doctors explain how to choose between cold medicines like Dayquil and Sudafed PE for congestion, ...

Despite needing FDA clearance to be on the shelves of your local pharmacy, some popular medicines probably don't work.