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Phenylephrine, sold under the brand names Neosynephrine and Sudafed PE among others, is a medication used as a decongestant for uncomplicated nasal congestion in the form of a nasal spray or oral tablet, [5] to dilate the pupil, to increase blood pressure given intravenously in cases of low blood pressure, and to relieve hemorrhoids as a suppository.
The concern goes beyond ineffectiveness; phenylephrine can come with side effects such as headaches, insomnia and nervousness. At higher doses, it can increase blood pressure.
Phenylephrine is an over-the-counter drug that has been used for decades to relieve congestion and stuffy nose caused by allergies or colds, and purportedly works by reducing the swelling of blood ...
Oral phenylephrine is ineffective and “should almost never be used,” said Dr. Purvi Parikh, an allergist and immunologist at Allergy & Asthma Associates of Murray Hill in New York City.
After anesthetizing the eye with medication, the conjunctiva may be moved with a cotton swab to observe the location of the enlarged blood vessels. [ citation needed ] In very rare cases, if episcleritis does not respond to treatment, then a biopsy may be considered, [ 6 ] which help provide information regarding any underlying condition ...
Phenylephrine, which alongside paracetamol is one of Lemsip's two primary active ingredients and is intended to be responsible for most of the product's claimed effects, was discovered to be ineffective as a decongestant in 2015, leading some pharmacists to call for the ingredient to be banned.
It contains, tropicamide, an anticholinergic, and phenylephrine, as the hydrochloride, an alpha-1 adrenergic receptor agonist. [1] It is sprayed into the eyes. [ 1 ]
Phenylephrine is an oral medication primarily used as a decongestant. [5] [6] It is a selective α 1-adrenergic receptor activator which results in the constriction of both arteries and veins. [5] Common side effects include nausea, headache, and anxiety. [5] Phenylephrine was patented in 1927 and came into medical use in 1938. [7]