phenylephrine(redirected from Phenylephedrine)
Also found in: Dictionary, Thesaurus, Encyclopedia.
Related to Phenylephedrine: phenylephrine
an adrenergic with potent vasoconstrictor properties; used as the hydrochloride salt for various purposes: topically to decongest nasal and laryngeal mucous membranes or to produce mydriasis without cycloplegia; intravenously to maintain blood pressure during spinal and inhalation anesthesia, to treat vascular failure in drug-induced shock, shocklike states, and hypotension, to prolong spinal anesthesia, and to treat paroxysmal supraventricular tachycardia; and orally as a component of combination antihistaminic-decongestant preparations.
An adrenergic drug, C9H13NO2, that is a powerful vasoconstrictor and is used to relieve nasal congestion, dilate the pupils, and maintain blood pressure during anesthesia.