Pharmacies could pull common over-the-counter cold medications, including Dayquil, Sudafed and Theraflu, from store shelves after Food and Drug Administration experts determined one of the drugs' main ...

Phenylephrine, the key drug used in leading decongestant brands such as Sudafed, Allegra and Dayquil, is nothing more than a placebo when taken orally, according to the latest research from a Food and ...