phenylpropanolamine

(redirected from Norephedrine)
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Related to Norephedrine: norepinephrine
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Words related to phenylpropanolamine

an adrenergic drug used in many preparations to relieve allergic reactions or respiratory infections

References in periodicals archive ?
Cathinone is relatively unstable and oxidizes at room temperature into (+)-norpseudoephedrine and norephedrine within a few days of picking or if the leaf is dried (Kalix 1991; Szendrei 1980).
The three main psychoactive alkaloids present in khat leaves, cathinone, cathine and norephedrine, are psychostimulants structurally and pharmacologically similar to amphetamine.
9:00 ORAL INGESTION OF NOREPHEDRINE, CAFFEINE AND THEOPHYLLINE IN THE RAT: EXACERBATION OF BEHAVIORAL EXCITATION, HYPOTENSION AND TACHYCARDIA BY YOHIMBINE
Adipokinetix[TM], a dietary supplement advertised as a "Fat Burner," contains the phenylethylamine, 1R, 2S norephedrine HCI (NEP; 25 mg), the methylxanthines caffeine (C) and theophylline (T) (each 50 mg), and the [alpha]2-adrenoceptor antagonist, yohimbine (Y; 3 mg).
The article also warns consumers that some of these products contain potentially harmful combinations of active ingredients, such as caffeine, ephedrine, pseudoephedrine, and the more potent form of norephedrine.
Ma huang, which is derived from plants of the genus Ephedra, contains the alkaloids norephedrine, nor-pseudoephedrine, pseudoephedrine, and ephedrine, with the first two being minor components and ephedrine accounting for 30 to 90% of the total alkaloid content.
Blank plasma samples enriched with other sympathomimetic amines [ephedrine, pseudoephedrine, norephedrine (phenylpropanolamine), norpseudoephedrine, phentermine, gepefrine, and pholedrine (1000 [micro]g/L each)] and authentic plasma samples containing other drugs of abuse [amphetamine (AM), methamphetamine (MA), cannabis, and cocaine] were also checked for interfering peaks.
15), the cathinone, cathine, and norephedrine content in the leaves was 1.
Blank plasma samples enriched with other sympathomimetic amines [ephedrine, pseudoephedrine, norephedrine (phenylpropanolamine), norpseudoephedrine, phentermine, gepefrine, and pholedrine (1000 [[micro]g/L each)] and authentic plasma samples containing other drugs of abuse likely to be coingested with AM and MA (amphetamine-like designer drugs, cannabis, and cocaine) were also checked for interferences.
A previously published gas chromatography-mass spectrometry method (3, 4) was used to verify the absence of the following amphetamine-related compounds: amfepramone, amphetamine, benzodioxazoylbutanamine, benzphetamine, clobenzorex, dexfenfluramine, dimethoxybromoamphetamine, dimethoxymethylamphetamine, fencamfamin, fenproporex, mefenorex, methamphetamine, methoxyphenamine, methylbenzodioxazolylbutanamine, methylenedioxyamphetamine, methylenedioxyethamphetamine, methylenedioxymethamphetamine, methylphenidate, 4methylthioamphetamine, norephedrine, norfenfluramine, phentermine, and pseudoephedrine.