In a long-sought move, the Food and Drug Administration on Thursday formally began the process of abandoning oral doses of a common over-the-counter decongestant, which the agency concluded last year is not effective at relieving stuffy noses. Specifically, the FDA issued a proposed order to remove oral phenylephrine from the list of drugs that drugmakers can include in over-the-counter products—also known as the OTC monograph. Once removed, drug makers will no longer be able to include phenylep...