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Sex differences in absorption kinetics of sodium salicylate
Author(s) -
Miaskiewicz Stasia L,
Shively Carol A,
Vesell Elliot S
Publication year - 1982
Publication title -
clinical pharmacology and therapeutics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.941
H-Index - 188
eISSN - 1532-6535
pISSN - 0009-9236
DOI - 10.1038/clpt.1982.5
Subject(s) - sodium salicylate , kinetics , absorption (acoustics) , sodium , chemistry , pharmacology , medicine , materials science , organic chemistry , physics , composite material , quantum mechanics
Sodium salicylate in aqueous solution (9 mg/kg) was given by oral and intravenous routes to normal male and female subjects. Because the bio availability of salicylate was complete, salicylate was given orally in all subsequent experiments. There were sex differences in time required to attain peak salicylate concentration (t max ), but not in maximum plasma salicylate concentration (C max ). There were no sex differences in apparent volume of distribution, plasma salicylate clearance, or area under the concentration‐time curve. In female subjects, t max tended to reach a nadir at the middle of the menstrual cycle, when gastric emptying time is shortest, whereas C max remained relatively unchanged throughout the menstrual cycle. Equilibrium dialysis studies on the binding of sodium salicylate and of 14 C‐racemic warfarin to plasma from 25 normal male and 25 normal female subjects of similar age disclosed no sex differences either in the extent of binding of these drugs or in serum albumin concentration. The possibility of sex differences in rates of gastrointestinal absorption of other drugs should be investigated. Clinical Pharmacology and Therapeutics (1982) 31 , 30–37; doi: 10.1038/clpt.1982.5

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