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/ Medical Recommendations / Why are oral decongestants unsafe?

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Why are oral decongestants unsafe?

Updated Thu, Jan 04, 2024

Oral decongestants such as Sudafed and Nyquil contain pseudoephedrine or phenylephrine and can cause more serious side-effects like irregular heartbeat or blood pressure changes. These medications are not safe for long-term use. You should not need to take these while on Allermi.