n-methylephedrine has been researched along with ephedrine in 66 studies
| Timeframe | Studies, this research(%) | All Research% |
|---|---|---|
| pre-1990 | 4 (6.06) | 18.7374 |
| 1990's | 14 (21.21) | 18.2507 |
| 2000's | 25 (37.88) | 29.6817 |
| 2010's | 20 (30.30) | 24.3611 |
| 2020's | 3 (4.55) | 2.80 |
| Authors | Studies |
|---|---|
| Furuya, T; Kurokawa, Y; Murakami, O; Ochiai, T; Ohno, K; Sekita, K; Uzawa, K; Wakasa, Y | 1 |
| Ishigooka, J; Murasaki, M; Yoshida, Y | 1 |
| Cui, JF; Niu, CQ; Zhang, JS | 1 |
| Inoue, T; Suzuki, S | 1 |
| Inoue, T; Tanaka, K | 1 |
| Ohno, N; Sakai, T | 1 |
| Kaneto, H; Takahashi, M; Watanabe, J | 1 |
| Ejima, A; Matsuda, R; Takai, N; Tatsuzawa, M | 1 |
| Alexander, S; Freedman, TB; Ragunathan, N | 1 |
| Adelman, DC; Catlin, DH; Sekera, M | 1 |
| Kawasuji, T; Koike, K; Saito, H | 3 |
| Kawasuji, T; Koike, K; Matsumoto, M; Niizawa, S; Saito, H; Takayanagi, I; Yasuda, N | 1 |
| Hamasaki, Y; Hayasaki, R; Ichimaru, T; Kobayashi, I; Miyazaki, S; Muro, E; Yamamoto, S; Zaitu, M | 1 |
| Kikura, R; Nakahara, Y | 1 |
| Harada, T; Masaoka, Y; Miki, H; Nakamoto, Y; Okamura, N; Tsuguma, M; Yagi, A; Yamashita, S; Yoshitomi, H | 1 |
| Campíns-Falcó, P; Herráez-Hernández, R | 1 |
| Chen, YC; Tsai, MF | 1 |
| Kato, S | 1 |
| Di, X; Guo, XJ; Li, FM; Qiu, F; Wang, WH | 1 |
| LA BARRE, J | 1 |
| Eidam, P; Marshall, JA | 1 |
| Kamiyama, S; Maruyama, Y; Nakahata, N; Ohizumi, Y; Saito, SY | 1 |
| Kuo, FH; Shieh, MH; Tseng, YL | 1 |
| Chen, X; Yu, H; Zhang, Y; Zhong, D; Zhu, L | 1 |
| Chan, KH; Hsu, MC; Pan, RN | 1 |
| Lin, JM; Liu, LB; Zheng, ZX | 1 |
| Bell, DS; Cramer, HM; Jones, AD | 1 |
| Foley, JP; Kahle, KA | 3 |
| Imai, K; Izumoto, H; Kunieda, T; Mori, T; Takabatake, N; Yamamoto, S | 1 |
| Bavadekar, SA; Davis, YM; Feller, DR; Khan, IA; Lalchandani, SG; Ma, G; Nagmani, R; Schaneberg, BT | 1 |
| Hou, J; Rizvi, SA; Shamsi, SA; Zheng, J | 1 |
| Parker, KA; Xie, Q | 1 |
| Aschi, M; Filippi, A; Fraschetti, C; Giardini, A; Speranza, M | 1 |
| Manabe, H; Murao, S; Sekikawa, T; Yamashita, T | 1 |
| Deng, AJ; Du, GH; Li, ZH; Qin, HL; Zhang, JL; Zhao, W | 1 |
| Jia, YX; Liu, YM; Tian, W; Yue, HY | 2 |
| Botrè, F; de la Torre, X; Leone, D; Strano-Rossi, S | 1 |
| Gougoulidis, V; Rodchenkov, G; Schänzer, W; Sigmund, G; Thevis, M; Thomas, A | 1 |
| Imai, N; Kobari, M; Konishi, T; Serizawa, M; Yagi, N | 1 |
| Chen, G; Chi, Y; Tong, P; Zhang, L; Zheng, L; Zheng, X | 1 |
| Ahn, HK; Choi, JS; Han, JY; Kim, MY; Lee, HJ; Nava-Ocampo, AA; Song, IO; Yang, JH; Yook, JH | 1 |
| Cai, SQ; Chen, HB; Hong, H; Mikage, M; Shang, MY; Wang, X; Yang, DH | 1 |
| Luo, JB; Wang, XK; Yu, LP | 1 |
| Archer, R; Barker, J; Cross, P; Deshmukh, NI; Naughton, DP; Petróczi, A; Shah, SA | 1 |
| Jiang, JG; Song, GS; Zhang, XR; Zhang, YH | 1 |
| Jiang, Y; Li, H; Wang, Z; Xu, M; Zhang, F; Zhang, L | 1 |
| Jia, J; Liu, X; Wang, L; Wang, S; Xu, L | 1 |
| Fu, Q; Ma, S; Wang, J; Yan, T | 1 |
| Hale, KJ; Mackle, R; Manaviazar, S; Wang, L; Xiong, Z | 1 |
| Dohi, M; Kageyama, S; Kojima, A; Nishitani, Y; Okano, M; Sato, M | 1 |
| Abd El-Aty, AM; Cho, SH; Cho, SM; Jeong, D; Kim, JS; Kim, SK; Park, JA; Shim, JH; Shin, HC; Yi, H; Zhang, D | 1 |
| Attipoe, S; Cohen, PA; Deuster, PA; Eichner, A | 1 |
| Cha, E; Cha, S; Jeong, ES; Kim, KH; Kwon, OS; Lee, J | 1 |
| Lorenz, H; Polenske, D; Seidel-Morgenstern, A; Tulashie, SK | 1 |
| Kase, Y; Kushida, H; Matsumoto, T; Matsushita, S; Oyama, Y; Setou, M; Suda, T; Watanabe, J | 1 |
| Chang, CW; Hsu, MC; Hsu, SY; Huang, GQ | 1 |
| Abe, H; Inoue, H; Iwase, H; Iwata, YT; Kanamori, T; Kuwayama, K; Miyaguchi, H; Nariai, M; Segawa, H; Tsujikawa, K; Yamamuro, T | 1 |
| Aguilar, C; Borrull, F; Calull, M; Pérez-Alcaraz, A | 1 |
| He, Y; Huang, P; Li, C; Tang, Y; Wan, H; Yu, L; Zhou, H | 1 |
| Choi, YH; Jang, YP; Kim, HJ; Kim, MK; Park, G; Park, SC; Yun, N | 1 |
| Chan, YY; Chen, FA; Hung, HY; Kuo, PC; Lam, SH; Li, CY; Lin, SM; Liou, MJ; Shieh, PC; Wu, TS | 1 |
1 review(s) available for n-methylephedrine and ephedrine
| Article | Year |
|---|---|
[Ephedrine psychosis reconsidered].
Topics: Animals; Antitussive Agents; Ephedrine; Humans; Psychoses, Substance-Induced; Substance-Related Disorders | 2002 |
65 other study(ies) available for n-methylephedrine and ephedrine
| Article | Year |
|---|---|
[Studies on reinforcing effects of methylephedrine, caffeine and their mixture with intravenous-self administration in rhesus monkeys].
Topics: Animals; Caffeine; Drug Synergism; Ephedrine; Injections, Intravenous; Macaca mulatta; Male; Self Administration; Substance-Related Disorders | 1992 |
Abuse of "BRON": a Japanese OTC cough suppressant solution containing methylephedrine, codeine, caffeine and chlorpheniramine.
Topics: Adult; Antitussive Agents; Caffeine; Chlorpheniramine; Codeine; Drug Combinations; Ephedrine; Female; Hallucinations; Humans; Japan; Male; Nonprescription Drugs; Paranoid Disorders; Psychoses, Substance-Induced; Substance-Related Disorders | 1991 |
[Determination of six Ephedra alkaloids in Chinese Ephedra (Ma Huang) by gas chromatography].
Topics: Alkaloids; Chromatography, Gas; Drugs, Chinese Herbal; Ephedrine; Phenylpropanolamine; Species Specificity | 1991 |
The metabolism of (+-)-methylephedrine in rat and man.
Topics: Administration, Oral; Animals; Ephedrine; Gas Chromatography-Mass Spectrometry; Humans; Male; Metabolic Clearance Rate; Rats; Rats, Inbred Strains; Xenobiotics | 1990 |
N-oxidation and N-demethylation of methylephedrine by rat-liver microsomes.
Topics: Animals; Cytochrome P-450 Enzyme Inhibitors; Ephedrine; In Vitro Techniques; Male; Methimazole; Microsomes, Liver; Oxidation-Reduction; Oxygenases; Pyridines; Rats; Rats, Inbred Strains | 1990 |
Improved determination of methamphetamine, ephedrine and methylephedrine in urine by extraction--thermospectrometry.
Topics: Ephedrine; Humans; Indicators and Reagents; Methamphetamine; Spectrophotometry | 1987 |
[Studies on tolerance to and dependence on SS Bron solution-W: effect of major constituents on the action of dihydrocodeine in mice].
Topics: Analgesia; Animals; Caffeine; Chlorpheniramine; Codeine; Drug Interactions; Ephedrine; Guinea Pigs; Male; Mice; Muscle Contraction; Substance-Related Disorders | 1986 |
[Determination of dl-methylephedrine hydrochloride and noscapine in mixed pharmaceutical preparations by high performance liquid chromatography-autoanalyser system separation].
Topics: Chromatography, High Pressure Liquid; Drug Combinations; Ephedrine; Noscapine; Pharmaceutical Preparations | 1983 |
Vibrational circular dichroism in ephedra molecules. Experimental measurement and ab initio calculation.
Topics: Circular Dichroism; Ephedrine; Molecular Conformation; Phenylpropanolamine; Vibration | 1994 |
Erythroderma associated with ingestion of an herbal product.
Topics: Adult; Dermatitis, Exfoliative; Drugs, Chinese Herbal; Ephedrine; Female; Gas Chromatography-Mass Spectrometry; Humans; Phenylpropanolamine; Tablets | 1993 |
Effects of optical isomers of ephedrine and methylephedrine on the twitch response in the isolated rat vas deferens and the involvement of alpha 2-adrenoceptors.
Topics: Adrenergic alpha-2 Receptor Agonists; Adrenergic alpha-2 Receptor Antagonists; Animals; Clonidine; Dose-Response Relationship, Drug; Ephedrine; In Vitro Techniques; Male; Muscle Contraction; Muscle, Smooth; Norepinephrine; Rats; Rats, Wistar; Stereoisomerism; Vas Deferens | 1996 |
Assessment of antihistaminic and antimuscarinic effects of optical isomers of ephedrine and methylephedrine by receptor binding assay in guinea pig ileal muscle.
Topics: Acetylcholine; Animals; Ephedrine; Guinea Pigs; Histamine; Ileum; Isomerism; Male; Pyrilamine; Quinuclidinyl Benzilate; Receptors, Histamine H1; Receptors, Muscarinic | 1996 |
Chronotropic effects of optical isomers of ephedrine and methylephedrine in the isolated rat right atria and in vitro assessment of direct and indirect actions on beta 1-adrenoceptors.
Topics: Animals; Bronchodilator Agents; Ephedrine; Heart Rate; In Vitro Techniques; Isoproterenol; Male; Rats; Rats, Wistar; Receptors, Adrenergic, beta-1; Reserpine; Stereoisomerism | 1996 |
Relaxant responses by optical isomers of ephedrine and methylephedrine in guinea pig tracheal smooth muscle.
Topics: Animals; Butoxamine; Carbachol; Ephedrine; Guinea Pigs; Histamine; In Vitro Techniques; Male; Muscle Contraction; Muscle Relaxation; Muscle Tonus; Muscle, Smooth; Propranolol; Stereoisomerism; Trachea | 1996 |
The Chinese herbal medicine, shinpi-to, inhibits IgE-mediated leukotriene synthesis in rat basophilic leukemia-2H3 cells.
Topics: Analysis of Variance; Animals; Arachidonic Acid; Asthma; Bronchodilator Agents; Calcimycin; Calcium; Cell Membrane; Drugs, Chinese Herbal; Ephedrine; Immunoglobulin E; Ionophores; Isotope Labeling; Leukemia, Basophilic, Acute; Leukotriene A4; Leukotriene B4; Leukotriene C4; Lipoxygenase Inhibitors; Phospholipases A; Phospholipases A2; Radioimmunoassay; Rats; Tritium; Tumor Cells, Cultured | 1997 |
Hair analysis for drugs of abuse. XIX. Determination of ephedrine and its homologs in rat hair and human hair.
Topics: Amphetamines; Animals; Central Nervous System Stimulants; Ephedrine; Female; Gas Chromatography-Mass Spectrometry; Hair; Humans; Infant, Newborn; Male; Phenylpropanolamine; Pregnancy; Rats; Reproducibility of Results; Sensitivity and Specificity; Substance Abuse Detection | 1997 |
Simultaneous determination of ephedrine, pseudoephedrine, norephedrine and methylephedrine in Kampo medicines by high-performance liquid chromatography.
Topics: Central Nervous System Stimulants; Chromatography, High Pressure Liquid; Drugs, Chinese Herbal; Ephedrine; Medicine, Kampo; Phenylpropanolamine; Reference Standards; Solutions; Solvents | 1999 |
Derivatization of tertiary amphetamines with 9-fluorenylmethyl chloroformate for liquid chromatography: determination of N-methylephedrine.
Topics: Amphetamines; Chromatography, Liquid; Ephedrine; Evaluation Studies as Topic; Fluorenes; Indicators and Reagents | 2000 |
Using surfactants to enhance the analyte signals in activated carbon, surface-assisted laser desorption/ionization (SALDI) mass spectrometry.
Topics: Adenosine Triphosphate; Benzenesulfonates; Ephedrine; Sodium Dodecyl Sulfate; Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization; Surface-Active Agents | 2000 |
[Determination of three principal components in chuanjing tablets by using high performance liquid chromatography].
Topics: Amobarbital; Bronchodilator Agents; Chromatography, High Pressure Liquid; Drug Combinations; Ephedrine; Hypnotics and Sedatives; Tablets; Theophylline | 2000 |
[Apropos of the cardiorespiratory and circulatory properties of N-methylephedrine hydrochloride].
Topics: Cardiovascular System; Cell Respiration; Ephedrine; Respiration | 1960 |
Diastereoselective additions of chiral vinylzinc reagents to alpha-chiral aldehydes.
Topics: Aldehydes; Ephedrine; Lithium; Magnesium; Molecular Structure; Stereoisomerism; Vinyl Compounds; Zinc | 2004 |
Ephedrae herba in Mao-Bushi-Saishin-To inhibits IgE-mediated histamine release and increases cAMP content in RBL-2H3 cells.
Topics: Animals; Cell Line, Tumor; Cyclic AMP; Drugs, Chinese Herbal; Ephedra; Ephedrine; Histamine Release; Immunoglobulin E; Immunosuppressive Agents; Leukemia, Basophilic, Acute; Male; Rats; Rats, Wistar | 2004 |
Metabolites of ephedrines in human urine after administration of a single therapeutic dose.
Topics: Adrenergic Agonists; Chromatography, Gas; Ephedrine; Female; Forensic Medicine; Humans; Linear Models; Male; Phenylpropanolamine | 2006 |
Simultaneous determination of methylephedrine and noscapine in human plasma by liquid chromatography-tandem mass spectrometry.
Topics: Atmospheric Pressure; Calibration; Chromatography, Liquid; Ephedrine; Humans; Mass Spectrometry; Noscapine; Reproducibility of Results; Sensitivity and Specificity | 2005 |
Simultaneous quantification of six ephedrines in a Mahwang preparation and in urine by high-performance liquid chromatography.
Topics: Chromatography, High Pressure Liquid; Doping in Sports; Drugs, Chinese Herbal; Ephedrine; Humans; Phenylpropanolamine; Propanolamines; Reproducibility of Results | 2005 |
Application of dimethyl-beta-cyclodextrin as a chiral selector in capillary electrophoresis for enantiomer separation of ephedrine and related compounds in some drugs.
Topics: beta-Cyclodextrins; Buffers; Electrophoresis, Capillary; Ephedrine; Hydrogen-Ion Concentration; Pharmaceutical Preparations; Phenylpropanolamine; Stereoisomerism; Temperature | 2005 |
Rational method development strategies on a fluorinated liquid chromatography stationary phase: mobile phase ion concentration and temperature effects on the separation of ephedrine alkaloids.
Topics: Alkaloids; Amitriptyline; Berberine; Chromatography, High Pressure Liquid; Ephedrine; Fluorocarbons; Ion Exchange; Phenylpropanolamine; Synephrine; Temperature | 2005 |
Chiral microemulsion electrokinetic chromatography with two chiral components: Improved separations via synergies between a chiral surfactant and a chiral cosurfactant.
Topics: 1-Butanol; Chromatography; Electrophoresis, Capillary; Emulsions; Ephedrine; Hexanols; Stereoisomerism; Surface-Active Agents; Thermodynamics; Valine | 2006 |
[Ischemic stroke in a young patient with methylephedrine addiction: a case report].
Topics: Adult; Antitussive Agents; Ephedrine; Humans; Magnetic Resonance Imaging; Male; Stroke; Substance-Related Disorders | 2006 |
Chiral microemulsion electrokinetic chromatography: Effect of cosurfactant identity on enantioselectivity, methylene selectivity, resolution, and other chromatographic figures of merit.
Topics: Acetates; Capillary Electrochromatography; Emulsions; Ephedrine; Fatty Alcohols; Particle Size; Sensitivity and Specificity; Stereoisomerism; Surface-Active Agents; Valine | 2006 |
Pharmacological effects of ephedrine alkaloids on human alpha(1)- and alpha(2)-adrenergic receptor subtypes.
Topics: Adrenergic alpha-Agonists; Adrenergic alpha-Antagonists; Animals; CHO Cells; Cricetinae; Cricetulus; Ephedrine; Humans; Phenylpropanolamine; Receptors, Adrenergic, alpha-1; Receptors, Adrenergic, alpha-2; Structure-Activity Relationship | 2007 |
Two-chiral-component microemulsion electrokinetic chromatography-chiral surfactant and chiral oil: part 1. dibutyl tartrate.
Topics: Atenolol; Chromatography, Micellar Electrokinetic Capillary; Emulsions; Ephedrine; Hexanols; Metoprolol; Oils; Stereoisomerism; Surface-Active Agents; Synephrine; Tartrates; Thermodynamics; Valine | 2007 |
Simultaneous chiral separation and determination of ephedrine alkaloids by MEKC-ESI-MS using polymeric surfactant I: method development.
Topics: Buffers; Chromatography, Micellar Electrokinetic Capillary; Ephedrine; Micelles; Phenylpropanolamine; Polymers; Sensitivity and Specificity; Spectrometry, Mass, Electrospray Ionization; Spectrophotometry, Ultraviolet; Stereoisomerism; Surface-Active Agents; Temperature | 2007 |
Asymmetric catalysis route to anti,anti stereotriads, illustrated by applications.
Topics: Biological Products; Bridged Bicyclo Compounds, Heterocyclic; Catalysis; Depsipeptides; Ephedrine; Lactones; Macrolides; Molecular Structure; Serine; Stereoisomerism | 2008 |
Fast stereoselective reactions in electrosprayed Co(II)/neurotransmitter nanodroplets.
Topics: Cobalt; Ephedrine; Methanol; Models, Chemical; Neurotransmitter Agents; Spectrometry, Mass, Electrospray Ionization; Stereoisomerism | 2008 |
Intoxication with over-the-counter antitussive medication containing dihydrocodeine and chlorpheniramine causes generalized convulsion and mixed acidosis.
Topics: Acidosis; Adult; Antitussive Agents; Chlorpheniramine; Codeine; Ephedrine; Humans; Japan; Male; Nonprescription Drugs; Seizures; Substance-Related Disorders | 2008 |
Chemical constituents of the stems of Ephedra sinica.
Topics: Alkaloids; Drugs, Chinese Herbal; Ephedra sinica; Ephedrine; Molecular Structure; Naphthalenes; Nuclear Magnetic Resonance, Biomolecular; Plant Stems; Pseudoephedrine | 2009 |
The use of CE ECL with ionic liquid for the determination of drug alkaloids and applications in human urine.
Topics: Electrophoresis, Capillary; Ephedrine; Humans; Hydrogen-Ion Concentration; Imidazoles; Ionic Liquids; Linear Models; Luminescent Measurements; Morphine Derivatives; Osmolar Concentration; Reproducibility of Results; Sensitivity and Specificity | 2009 |
Simultaneous determination of methylephedrine and pseudoephedrine in human urine by CE with electrochemiluminescence detection and its application to pharmacokeinetics.
Topics: Bronchodilator Agents; Electrochemistry; Electrophoresis, Capillary; Ephedrine; Humans; Imidazoles; Luminescent Measurements; Pseudoephedrine; Reproducibility of Results; Sensitivity and Specificity | 2009 |
The relevance of the urinary concentration of ephedrines in anti-doping analysis: determination of pseudoephedrine, cathine, and ephedrine after administration of over-the-counter medicaments.
Topics: Adult; Doping in Sports; Ephedrine; Female; Humans; Male; Nonprescription Drugs; Phenylpropanolamine; Pseudoephedrine; Substance Abuse Detection | 2009 |
Doping control analysis of metamfepramone and two major metabolites using liquid chromatography-tandem mass spectrometry.
Topics: Chromatography, Liquid; Doping in Sports; Ephedrine; Humans; Male; Middle Aged; Propiophenones; Sensitivity and Specificity; Spectrometry, Mass, Electrospray Ionization; Substance Abuse Detection; Sympathomimetics; Tandem Mass Spectrometry | 2009 |
Ischemic stroke associated with cough and cold preparation containing methylephedrine and supplement containing Chinese herbal drugs.
Topics: Adult; Cerebellum; Common Cold; Cough; Dietary Supplements; Drugs, Chinese Herbal; Ephedrine; Female; Humans; Magnetic Resonance Angiography; Stroke; Sympathomimetics; Tomography, X-Ray Computed | 2010 |
Highly sensitive transient isotachophoresis sample stacking coupling with capillary electrophoresis-amperometric detection for analysis of doping substances.
Topics: Adrenergic beta-Antagonists; Capillaries; Celiprolol; Diuretics; Doping in Sports; Electrophoresis; Electrophoresis, Capillary; Ephedrine; Humans; Indapamide; Reproducibility of Results; Sotalol; Substance Abuse Detection; Urinalysis | 2010 |
A prospective cohort study of pregnancy outcomes of women inadvertently exposed to methylephedrine in the 1st trimester of pregnancy.
Topics: Abnormalities, Drug-Induced; Adult; Birth Weight; Cohort Studies; Ephedrine; Female; Gestational Age; Humans; Maternal Exposure; Pregnancy; Pregnancy Outcome; Pregnancy Trimester, First; Prospective Studies; Republic of Korea | 2010 |
Comparison of contents of five ephedrine alkaloids in three official origins of Ephedra Herb in China by high-performance liquid chromatography.
Topics: Alkaloids; China; Chromatography, High Pressure Liquid; Ephedra; Ephedrine; Phenylpropanolamine | 2011 |
[Determination of ephedrine hydrochloride, pseudoephedrine hydrochloride and methylephedrine hydrochloride in maxingshigan decoction by CE].
Topics: Drugs, Chinese Herbal; Electrophoresis, Capillary; Ephedra sinica; Ephedrine; Plants, Medicinal; Pseudoephedrine; Quality Control; Reproducibility of Results | 2011 |
Quantitative analysis of mephedrone using liquid chromatography tandem mass spectroscopy: application to human hair.
Topics: Adolescent; Adult; Chromatography, Liquid; Ephedrine; Female; Hair; Humans; Male; Methamphetamine; Middle Aged; Phenylpropanolamine; Reproducibility of Results; Tandem Mass Spectrometry; Young Adult | 2012 |
[Rapid identification 15 effective components of anti common cold medicine with MRM by LC-MS/MS].
Topics: Acetaminophen; Acetanilides; Amantadine; Aminopyrine; Anti-Inflammatory Agents, Non-Steroidal; Antipyretics; Antipyrine; Caffeine; Chlorpheniramine; Chromatography, Liquid; Diclofenac; Diphenhydramine; Drug Contamination; Drug Stability; Ephedrine; Guaifenesin; Promethazine; Pseudoephedrine; Reproducibility of Results; Salicylates; Spectrometry, Mass, Electrospray Ionization; Tandem Mass Spectrometry | 2013 |
[Simultaneous determination of ephedrine and N-methylephedrine in urine by solid phase extraction-ultra performance liquid chromatography-electrospray ionization tandem mass spectrometry].
Topics: Chromatography, High Pressure Liquid; Ephedrine; Humans; Solid Phase Extraction; Spectrometry, Mass, Electrospray Ionization; Tandem Mass Spectrometry | 2013 |
Sol-gel approach for fabrication of coated anodized titanium wire for solid-phase microextraction: highly efficient adsorbents for enrichment of trace polar analytes.
Topics: beta-Cyclodextrins; Chromatography, Gas; Ephedrine; Flame Ionization; Humans; Phase Transition; Polyethylene Glycols; Polymethyl Methacrylate; Solid Phase Microextraction; Titanium; Volatile Organic Compounds | 2014 |
UPLC-MS/MS determination of ephedrine, methylephedrine, amygdalin and glycyrrhizic acid in Beagle plasma and its application to a pharmacokinetic study after oral administration of Ma Huang Tang.
Topics: Administration, Oral; Amygdalin; Animals; Chromatography, High Pressure Liquid; Dogs; Drugs, Chinese Herbal; Ephedrine; Glycyrrhizic Acid; Limit of Detection; Tandem Mass Spectrometry | 2015 |
Carreira alkynylations with paraformaldehyde. a mild and convenient protocol for the hydroxymethylation of complex base-sensitive terminal acetylenes via alkynylzinc triflates.
Topics: Alkylation; Alkynes; Catalysis; Ephedrine; Esters; Formaldehyde; Ligands; Mesylates; Methylation; Molecular Structure; Polymers | 2015 |
Comparison of urine analysis and dried blood spot analysis for the detection of ephedrine and methylephedrine in doping control.
Topics: Adult; Calibration; Central Nervous System Stimulants; Chromatography, High Pressure Liquid; Doping in Sports; Dried Blood Spot Testing; Ephedrine; Female; Humans; Hydrogen-Ion Concentration; Reproducibility of Results; Substance Abuse Detection; Tandem Mass Spectrometry; Urinalysis | 2016 |
Simultaneous detection of flumethasone, dl-methylephedrine, and 2-hydroxy-4,6-dimethylpyrimidine in porcine muscle and pasteurized cow milk using liquid chromatography coupled with triple-quadrupole mass spectrometry.
Topics: Animals; Cattle; Chromatography, Liquid; Ephedrine; Flumethasone; Meat; Milk; Muscle, Skeletal; Pyrimidinones; Swine; Tandem Mass Spectrometry | 2016 |
Variability of Stimulant Levels in Nine Sports Supplements Over a 9-Month Period.
Topics: Caffeine; Central Nervous System Stimulants; Dietary Supplements; Dose-Response Relationship, Drug; Ephedrine; Food Labeling; Humans; Octopamine; Phenylpropanolamine; Pilot Projects; Pseudoephedrine; Sports; Strychnine; Synephrine; Time Factors; United States | 2016 |
Direct and rapid quantitation of ephedrines in human urine by paper spray ionization/high resolution mass spectrometry.
Topics: Central Nervous System Stimulants; Ephedrine; Humans; Limit of Detection; Mass Spectrometry; Paper; Phenylpropanolamine; Pseudoephedrine; Reproducibility of Results; Substance Abuse Detection | 2016 |
Solid-Phase and Oscillating Solution Crystallization Behavior of (+)- and (-)-N-Methylephedrine.
Topics: Crystallization; Ephedrine; Solubility; Stereoisomerism; Temperature; X-Ray Diffraction | 2016 |
Distribution Analysis via Mass Spectrometry Imaging of Ephedrine in the Lungs of Rats Orally Administered the Japanese Kampo Medicine Maoto.
Topics: Administration, Oral; Animals; Ephedrine; Japan; Lung; Male; Mass Spectrometry; Medicine, Kampo; Plant Extracts; Rats, Sprague-Dawley | 2017 |
Ephedra alkaloid contents of Chinese herbal formulae sold in Taiwan.
Topics: Alkaloids; Chromatography, High Pressure Liquid; Doping in Sports; Drugs, Chinese Herbal; Ephedra; Ephedrine; Phenylpropanolamine; Pseudoephedrine; Taiwan | 2018 |
Micro-segmental hair analysis for proving drug-facilitated crimes: Evidence that a victim ingested a sleeping aid, diphenhydramine, on a specific day.
Topics: Beverages; Biomarkers; Chlorpheniramine; Crime; Diphenhydramine; Ephedrine; Female; Forensic Medicine; Hair; Humans; Male; Reproducibility of Results; Sleep Aids, Pharmaceutical; Substance Abuse Detection; Time Factors | 2018 |
Enantioselective determination of cathinones in urine by high pressure in-line SPE-CE.
Topics: Alkaloids; Benzodioxoles; Electrophoresis, Capillary; Ephedrine; Humans; Limit of Detection; Liquid-Liquid Extraction; Methamphetamine; Pyrrolidines; Reproducibility of Results; Solid Phase Extraction; Stereoisomerism; Synthetic Cathinone | 2019 |
Correlation study between the pharmacokinetics of seven main active ingredients of Mahuang decoction and its pharmacodynamics in asthmatic rats.
Topics: Amygdalin; Animals; Asthma; Chromatography, High Pressure Liquid; Cinnamates; Correlation of Data; Drugs, Chinese Herbal; Ephedra sinica; Ephedrine; Flavanones; Glucosides; Glycyrrhizic Acid; Male; Ovalbumin; Plant Preparations; Rats; Rats, Sprague-Dawley | 2020 |
Localization of Major Ephedra Alkaloids in Whole Aerial Parts of Ephedrae Herba Using Direct Analysis in Real Time-Time of Flight-Mass Spectrometry.
Topics: Alkaloids; Ephedra; Ephedrine; Mass Spectrometry; Molecular Imaging; Plant Components, Aerial; Plants, Medicinal; Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization | 2021 |
A Rapid and Feasible
Topics: Alkaloids; Ephedra; Ephedrine; Feasibility Studies; Humans; Limit of Detection; Magnetic Resonance Spectroscopy; Medicine, Chinese Traditional; Phenylpropanolamine; Plant Preparations; Pseudoephedrine; Species Specificity | 2021 |