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Phenylephrine is the "PE" in "Sudafed PE ... Pseudoephedrine is the active ingredient in original Sudafed, and it constricts ...
Verywell Health on MSN1mon
Phenylephrine vs. Pseudoephedrine: How Do They Compare for Congestion?Phenylephrine products, such as Sudafed PE, are available without a prescription ... Sudafed is behind the counter because the active ingredient in Sudafed, pseudoephedrine, can be used to make ...
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