Phenylephrinenoun
An α-adrenergic receptor agonist related to adrenaline, used as a vasoconstrictor and nasal decongestant; 3-(1-hydroxy-2-methylamino-ethyl)phenol, with the formula C9H13NO2.
Phenylephrinenoun
a powerful vasoconstrictor used to dilate the pupils and relieve nasal congestion
Phenylephrine
Phenylephrine is a medication primarily used as a decongestant, to dilate the pupil, to increase blood pressure, and to relieve hemorrhoids. When taken orally as a decongestant, it relieves nasal congestion due to colds and hay fever.
Pseudoephedrinenoun
(pharmaceutical drug) A sympathomimetic alkaloid commonly used as a decongestant; a chemical compound, an isomer of ephedrine, with the formula C10H15NO.
Pseudoephedrinenoun
poisonous crystalline alkaloid occurring with ephedrine and isomorphic with it
Pseudoephedrine
Pseudoephedrine (PSE) is a sympathomimetic drug of the phenethylamine and amphetamine chemical classes. It may be used as a nasal/sinus decongestant, as a stimulant, or as a wakefulness-promoting agent in higher doses.It was first characterized in 1889, by the German chemists Ladenburg and Oelschlägel, who used a sample that had been isolated from Ephedra vulgaris by the Merck pharmaceutical corporation of Darmstadt, Germany.