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Last Updated: 3 years ago

Possible Interaction: Etoposide and Quinine

supplement:

Quinine

Research Papers that Mention the Interaction

Etoposide inhibited quinine 3-hydroxylation in a concentration-dependent manner with a mean IC50 of 65 microM. The mean maximum inhibition by etoposide (100 micro) of quinine 3-hydroxylation was about 60%.
The mutual inhibition between quinine and etoposide with their major metabolic pathways (i.e. quinine 3-hydroxylation and etoposide 3'-demethylation) was examined in vitro by human liver microsomes.
We conclude that quinine and etoposide mutually inhibit the metabolism of each other, consistent with the previous finding that CYP3A4 catalyzes the metabolism of both substrates.
Drug metabolism and disposition: the biological fate of chemicals  •  1998  |  View Paper
The inclusion of the competitive MDR modulator quinine in the assay reversed MDR Dx-5 cell resistance to DOX and ETP by 6- to 16-fold, but had no effect on the cytotoxicity of TQ or DIM.
Anticancer research  •  1998  |  View Paper