Brand names: Tamoxifen Citrate
3 interactions on record
Tamoxifen and N-desmethyl tamoxifen plasma concentrations have been shown to be reduced when coadministered with rifampin or aminoglutethimide. Aminoglutethimide reduces tamoxifen and N-desmethyl tamoxifen plasma concentrations.
Source: FDA drug label - tamoxifen citrate
The effect of tamoxifen on metabolism and excretion of other antineoplastic drugs, such as cyclophosphamide and other drugs that require mixed function oxidases for activation, is not known.
Source: FDA drug label - tamoxifen citrate
Medroxyprogesterone reduces plasma concentrations of N-desmethyl, but not tamoxifen.
Source: FDA drug label - tamoxifen citrate