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A pharmacokinetic interaction between roxithromycin and midazolam

✍ Scribed by J. T. Backman; K. Aranko; J. -J. Himberg; K. T. Olkkola


Publisher
Springer
Year
1994
Tongue
English
Weight
506 KB
Volume
46
Category
Article
ISSN
0031-6970

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✦ Synopsis


The interaction between roxithromycin and midazolam was investigated in a double-blind, randomised crossover study of two phases. Ten healthy volunteers were given roxithromycin (300 mg) or placebo once daily for 6 days. On the sixth day they ingested 15 mg midazolam. Plasma samples were collected and psychomotor performance measured for 17 h.

Roxithromycin administration significantly increased the area under the plasma midazolam concentration-time curve from 8.3 to 12.2 gg. mk ~. rain and the elimination half-lives from 1.7 to 2.2 h. In psychomotor performance only minor differences were seen between the treatments in one of the measured psychomotor parameters.

Thus, in contrast to the strong interaction between erythromycin and midazolam, the interaction between roxithromycin and midazolam appears less likely to be clinically significant.


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