In this 2006 photo, Sudafed PE nasal decongestant is displayed on a shelf at a Walgreens store in Chicago, Illinois. Phenylephrine, a popular ingredient in many over-the-counter allergy and cold medicines, is ineffective in tablet form, an independent advisory committee to the US Food and Drug Administration unanimously agreed on September 12.
Mandatory Credit:	Tim Boyle/Getty Images/File

In this 2006 photo, Sudafed PE nasal decongestant is displayed on a shelf at a Walgreens store in Chicago, Illinois. Phenylephrine, a popular ingredient in many over-the-counter allergy and cold medicines, is ineffective in tablet form, an independent advisory committee to the US Food and Drug Administration unanimously agreed on September 12.
Mandatory Credit: Tim Boyle/Getty Images/File

Stories this photo appears in:

Tease photo

Popular OTC medicines for colds and allergies don’t work, FDA panel says

Phenylephrine, a popular ingredient in many over-the-counter allergy and cold medicines, is ineffective in tablet form, an independent advisory committee to the US Food and Drug Administration unanimously agreed on Tuesday.