Post From peterattiamd.com
We’ve all been there, battling a cold with congestion so relentless that breathing through your nose is impossible. You reach for your decongestant of choice, but the much-desired relief for your stuffy nose never comes. You wonder if you took enough of the medication, or if it’s past its expiration date, or perhaps if you’re just cursed. But the truth is simple: the medicine was never effective in the first place.
Oral phenylephrine is a common “active” ingredient in many popular cold, flu, and allergy medications, yet last…