Kinetics of methylprednisolone and its hemisuccinate ester. 1985

H Derendorf, and H Möllmann, and P Rohdewald, and J Rehder, and E W Schmidt

Methylprednisolone in the form of its hemisuccinate ester was injected intravenously in doses of 10 mg/kg and 63.1 mg. Plasma levels of methylprednisolone and of the ester were measured and their kinetics were calculated. Results indicate dose dependency in the kinetics of both. About 10% of the dose was excreted unchanged as hemisuccinate in the urine, indicating incomplete conversion of the prodrug. When methylprednisolone (80 mg) was also taken by mouth, the relative bioavailability of the tablets was 99%. Saliva levels of methylprednisolone were low but paralleled plasma levels in the postdistribution phase. No methylprednisolone hemisuccinate was found in saliva.

UI MeSH Term Description Entries
D007275 Injections, Intravenous Injections made into a vein for therapeutic or experimental purposes. Intravenous Injections,Injection, Intravenous,Intravenous Injection
D007700 Kinetics The rate dynamics in chemical or physical systems.
D008297 Male Males
D008775 Methylprednisolone A PREDNISOLONE derivative with similar anti-inflammatory action. 6-Methylprednisolone,Medrol,Metipred,Urbason,6 Methylprednisolone
D008776 Methylprednisolone Hemisuccinate A water-soluble ester of METHYLPREDNISOLONE used for cardiac, allergic, and hypoxic emergencies. Methylprednisolone Succinate,6 alpha-Methylprednisolone Sodium Hemisuccinate,A-MethaPred,Methylprednisolone Hemisuccinate Monosodium Salt,Methylprednisolone Sodium Hemisuccinate,Methylprednisolone Sodium Succinate,Solu-Medrol,Solumedrol,Urbason-Soluble,Hemisuccinate, Methylprednisolone,Sodium Hemisuccinate, Methylprednisolone,Sodium Succinate, Methylprednisolone,Succinate, Methylprednisolone,UrbasonSoluble
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D002851 Chromatography, High Pressure Liquid Liquid chromatographic techniques which feature high inlet pressures, high sensitivity, and high speed. Chromatography, High Performance Liquid,Chromatography, High Speed Liquid,Chromatography, Liquid, High Pressure,HPLC,High Performance Liquid Chromatography,High-Performance Liquid Chromatography,UPLC,Ultra Performance Liquid Chromatography,Chromatography, High-Performance Liquid,High-Performance Liquid Chromatographies,Liquid Chromatography, High-Performance
D005260 Female Females
D006207 Half-Life The time it takes for a substance (drug, radioactive nuclide, or other) to lose half of its pharmacologic, physiologic, or radiologic activity. Halflife,Half Life,Half-Lifes,Halflifes
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man

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