Pharmacokinetics of reboxetine in healthy volunteers. Single against repeated oral doses and lack of enzymatic alterations
Pellizzoni C, Poggesi I, Jorgensen NP,
Edwards DM, Paus E, Strolin Benedetti M
Pharmacokinetics and Metabolism,
Milan, Italy.
Biopharm Drug Dispos 1996 Oct; 17(7):623-33


The pharmacokinetics of reboxetine have been investigated in 12 healthy male volunteers after a single 2 mg dose of reboxetine and at steady state, following the last administration of a multiple-dose regimen (2mg twice a day for 5 1/2 d). Reboxetine was analysed in plasma and urine samples collected up to 72 h post-dosing using an HPLC method with UV detection. The urinary excretion rate of 6-beta-hydroxycortisol, used as a marker for cytochrome P450IIIA activity, was also tested, and any possible alteration was correlated to reboxetine plasma levels. The dosing regimen was well tolerated by all subjects. Reboxetine pharmacokinetic parameters, calculated after the single dose using non-compartmental analysis, were in good agreement with those obtained in previous studies. Following the multiple-dosing regimen, no significant deviations from expectation based on linear superposition was observed. The accumulation ratio, based on repeated-dose/single-dose ratios of Cmax, AUC(0-12 h), and C(12 h) was approximately two. A slight rise was recorded for the average excretion rate of 6-beta-hydroxycortisol over 48 h by the end of treatment; however, the difference was not statistically significant and the mean excretion rates were within the normal reference range. Thus a significant induction of P450IIIA was not indicated.

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Reboxetine and the elderly
Reboxetine versus fluoxetine
Reboxetine and major depression
Reboxetine and social functioning
Reboxetine: canine pharmacokinetics

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