1. Invasion and distribution of methanol
- Author
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Lars Althaus, K. Besserer, Sylvia Voges, Matthias Graw, and Hans-Thomas Haffner
- Subjects
Adult ,Male ,Ethanol ,Chromatography ,Stereochemistry ,Methanol ,Health, Toxicology and Mutagenesis ,Administration, Oral ,Half-life ,General Medicine ,Toxicology ,chemistry.chemical_compound ,Bolus (medicine) ,chemistry ,Pharmacokinetics ,Oral administration ,Injections, Intravenous ,Humans ,Toxicokinetics ,Drug Interactions ,Tissue Distribution ,Half-Life ,Distribution Volume - Abstract
After the enzyme systems responsible for methanol oxidation were blocked by ethanol, five test persons were given methanol at a dose of approximately 10 mg/kg weight, once orally and once parenterally. Taking into account the endogenous blood methanol levels detectable before the administration of methanol, C0 concentrations of 11.1-15.9 mg/kg were reached. This corresponds to a distribution volume of approximately 0.77 +/- 0.07 l/kg, which is comparable to the 0.78 +/- 0.09 l/kg obtained for ethanol. After parenterally administering methanol as a bolus, the distribution half-life was on average 8 min (range: 3.8-13.8 min). After oral administration of methanol diluted in 100 ml water on an empty stomach, invasion took place with a half-life of approximately 5 min (3.8-6.9 min). In one case, however, due to vegetative disturbances the invasion half-life was 23.1 min.
- Published
- 2000
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