The main ingredient used in many popular over-the-counter cold and allergy medications doesn’t actually work to get rid of nasal congestion, an advisory panel to the Food and Drug Administration declared Tuesday. 

In a unanimous vote, 16 advisors said oral forms of phenylephrine – a nasal decongestant found in versions of drugs like NyquilBenadryl, Sudafed and Mucinex – aren’t effective at relieving a stuffy nose. 

The FDA typically follows the advice of its advisory committees but it is not required to do so. The agency could potentially move to begin a process that removes phenylephrine from the market, which would force manufacturers to pull widely used cough and cold medications from store shelves and reformulate those products. 

That could affect Procter & Gamble, the manufacturer of all versions of Nyquil, and the Johnson & Johnson spinoff Kenvue, which manufactures Tylenol and Benadryl products.... Read More: CNBC