What Does Sudafed PE Actually Do? An In-Depth Look at Phenylephrine's Efficacy
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4 min read
In a unanimous 2023 decision, an FDA advisory panel concluded that oral phenylephrine, the active ingredient in Sudafed PE, is ineffective as a nasal decongestant at its recommended dosage. This has led many to question: what does Sudafed PE actually do, and why has it been so widely available if it doesn't work?