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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Study of urinary excretion of butobarbitone in man in relation to the percentage of ideal body weight.

1 Thirty-three patients with no evidence of endocrine disease, hepatic or renal insufficiency or sleep disorders, were classified in groups 1 to 4 in order of increasing of percentage of ideal body weight (IBW) respectively: less than 90% of IBW, 90--120%, 120--180%, and greater than 180% of IBW. After oral administration of 200 mg butobarbitone, concentration of the intact drug was measured by gas liquid chromatographic assay in urine samples collected during 72 h and at three times in blood. 2 A highly significant negative relationship was found between the cumulative excretion of butobarbitone with urine and the logarithm of the percentage of IBW. In contrast for a given weight, excretion of the drug with urine was found to be weakly correlated with the diuresis. 3 The cumulative urinary elimination of butobarbitone was significantly different between the groups studied, except of the difference between the group 2 and 3 of the patients. No significant difference was found between the renal clearances of butobarbitone in the four groups of subjects. 4 We conclude that redistribution of butobarbitone into adipose tissues can explain the obtained results and that obesity modifies the pharmacokinetics of the drug.[1]

References

  1. Study of urinary excretion of butobarbitone in man in relation to the percentage of ideal body weight. Cheymol, G., Bernheim, C., Besson, J., Dry, J., Portet, R. British journal of clinical pharmacology. (1979) [Pubmed]
 
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