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

The assessment of the intrasubject variability in digoxin absorption in man from two oral dosage forms.

The reproducibility of drug absorption within a given subject as well as the evaluation of bioavailability of two digoxin dosage forms were studied. The data showed (a) a higher initial plasma digoxin concentration after the soft elastic gelatin (SEG) capsule; (b) a more irregular absorption after the tablet; (c) on the average, the coefficients of variation of individual plasma concentrations were lower after the capsule; and (d) for the capsule, the intrasubject variations of the peak plasma concentrations, time of peak, area under plasma concentrations-versus-time curve (AUC), and amount digoxin excreted in urine (Ae) were on the average 60 per cent of the variations in the tablet parameters. The ratios of AUC and Ae for capsule/tablet were essentially unity, indicating that the amount digoxin absorbed from the 0.4-mg digoxin SEG capsule is identical to that from a 0.5-mg standard reference tablet.[1]

References

  1. The assessment of the intrasubject variability in digoxin absorption in man from two oral dosage forms. Yacobi, A., Stoll, R.G., Chao, G.C., Schwartz, R.A., Weidler, D.J., Ayers, J.W., Sakmar, E., Hallmark, M., Wagner, J.G. Journal of clinical pharmacology. (1981) [Pubmed]
 
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