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Phenylephrine is a selective α 1-adrenergic receptor agonist with minimal to no β-adrenergic receptor agonist activity or induction of norepinephrine release. [5] [8] [15] It causes constriction of both arteries and veins. [12] Phenylephrine was patented in 1933 [16] and came into medical use in 1938. [17] It is available as a generic medication.
Phenylephrine, a popular ingredient in many over-the-counter allergy and cold medicines, is ineffective in tablet form, an independent advisory committee to the US Food and Drug Administration ...
The U.S. Food and Drug Administration (FDA) announced that it plans to ban products containing phenylephrine, an ingredient found in many over-the-counter (OTC) oral cold and flu medications.
Guaifenesine is an expectorant, phenylephrine is a decongestant. The drug is sold under the brand name Entex and as generic brands. Entex La is 400 mg guaifenesin and 30 mg phenylephrine hydrochloride. Entex Pse is 600 mg guaifenesin and 120 mg phenylephrine hydrochloride.
A U.S. Food and Drug Administration advisory panel recently said that over-the-counter oral phenylephrine is an ineffective nasal decongestant. ... Phenylephrine nasal sprays, which aren’t ...
A decongestant, or nasal decongestant, is a type of pharmaceutical drug that is used to relieve nasal congestion in the upper respiratory tract.The active ingredient in most decongestants is either pseudoephedrine or phenylephrine (the latter of which has disputed effectiveness).