Phenylephrine never worked for decongestion.
Jeffrey Kopp from CNN:
The US Food and Drug Administration announced a proposal to remove oral phenylephrine – a common ingredient in many popular over-the-counter decongestants – from the market, citing evidence that it doesn’t work.
Phenylephrine, found in products like Sudafed PE, Vicks DayQuil and Mucinex Sinus-Max, has been widely used as a nasal decongestant for decades. The FDA’s proposal isn’t an immediate order; it launches a six-month public comment period, after which the agency will make a final decision on whether to pull it from shelves.
I could have told you long ago that this garbage doesn't work.
You know what else doesn't work? Dextromethorphan, which is listed on the bottle in this article.
What does work for cough? Honey.
What does work for nasal congestion? Pseudoephedrine. You know it works if you have to show your driver's license to get it.