A bottle of Vicks DayQuil cold and flu medicine containing phenylephrine is displayed for sale in a CVS Pharmacy store in Hawthorne, California, on Sept. 12, 2023. Patrick T. Fallon | AFP | Getty Images The Food and Drug Administration on Thursday proposed ending the use of a common ingredient found in many popular over-the-counter cold and allergy medications. The agency said an extensive review of available data determined that