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Mass fragmentographic determination of lofepramine and its metabolites in human plasma and urine using deuterated internal standards. 1977

K Matsubayashi, and H Hakusui, and M Sano

A sensitive and specific method for the determination of lofepramine and its matabolites, desipramine and 2-hydroxydesipramine, in human plasma and urine is described. Lofepramine, desipramine and 2-hydroxydesipramine were derivatized to ethyl p-chlorobenzoate, the bis(heptafluorobutyryl) derivative and teh N,O-bis(trifluoroacetyl) derivative, respectively, and then analysed by gas chromatogrphy--mass fragmentography. Corresponding deuterated compounds were used as internal standards. Determination was possible at levels as low as 2 ng/ml for lofepramine and desipramine and 20 ng/ml for 2-hydroxydesipramine.

UI MeSH Term Description Entries
D008401 Gas Chromatography-Mass Spectrometry A microanalytical technique combining mass spectrometry and gas chromatography for the qualitative as well as quantitative determinations of compounds. Chromatography, Gas-Liquid-Mass Spectrometry,Chromatography, Gas-Mass Spectrometry,GCMS,Spectrometry, Mass-Gas Chromatography,Spectrum Analysis, Mass-Gas Chromatography,Gas-Liquid Chromatography-Mass Spectrometry,Mass Spectrometry-Gas Chromatography,Chromatography, Gas Liquid Mass Spectrometry,Chromatography, Gas Mass Spectrometry,Chromatography, Mass Spectrometry-Gas,Chromatography-Mass Spectrometry, Gas,Chromatography-Mass Spectrometry, Gas-Liquid,Gas Chromatography Mass Spectrometry,Gas Liquid Chromatography Mass Spectrometry,Mass Spectrometry Gas Chromatography,Spectrometries, Mass-Gas Chromatography,Spectrometry, Gas Chromatography-Mass,Spectrometry, Gas-Liquid Chromatography-Mass,Spectrometry, Mass Gas Chromatography,Spectrometry-Gas Chromatography, Mass,Spectrum Analysis, Mass Gas Chromatography
D003891 Desipramine A tricyclic dibenzazepine compound that potentiates neurotransmission. Desipramine selectively blocks reuptake of norepinephrine from the neural synapse, and also appears to impair serotonin transport. This compound also possesses minor anticholinergic activity, through its affinity to muscarinic receptors. Desmethylimipramine,Apo-Desipramine,Demethylimipramine,Desipramine Hydrochloride,Norpramin,Novo-Desipramine,Nu-Desipramine,PMS-Desipramine,Pertofran,Pertofrane,Pertrofran,Petylyl,Ratio-Desipramine,Apo Desipramine,Hydrochloride, Desipramine,Novo Desipramine,Nu Desipramine,PMS Desipramine,Ratio Desipramine
D003984 Dibenzazepines Compounds with two BENZENE rings fused to AZEPINES.
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000929 Antidepressive Agents, Tricyclic Substances that contain a fused three-ring moiety and are used in the treatment of depression. These drugs block the uptake of norepinephrine and serotonin into axon terminals and may block some subtypes of serotonin, adrenergic, and histamine receptors. However, the mechanism of their antidepressant effects is not clear because the therapeutic effects usually take weeks to develop and may reflect compensatory changes in the central nervous system. Antidepressants, Tricyclic,Tricyclic Antidepressant,Tricyclic Antidepressant Drug,Tricyclic Antidepressive Agent,Tricyclic Antidepressive Agents,Antidepressant Drugs, Tricyclic,Agent, Tricyclic Antidepressive,Agents, Tricyclic Antidepressive,Antidepressant Drug, Tricyclic,Antidepressant, Tricyclic,Antidepressive Agent, Tricyclic,Drug, Tricyclic Antidepressant,Drugs, Tricyclic Antidepressant,Tricyclic Antidepressant Drugs,Tricyclic Antidepressants

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