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A 44-year-old member asked:

Does a decongestant or phenylephrine cause high / low blood pressure?

1 doctor answer2 doctors weighed in
Dr. Dan Fisher
Internal Medicine 28 years experience
High BP: Phenylephrine and decongestants in general stimulate receptors that constrict blood vessels ( that is how they decongest) and raise hr. These combined effects raise bp.
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Last updated Jul 2, 2019
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