Ea. Lien et al., PHARMACOKINETICS OF TAMOXIFEN IN PREMENOPAUSAL AND POSTMENOPAUSAL WOMEN WITH BREAST-CANCER, Journal of steroid biochemistry and molecular biology, 55(2), 1995, pp. 229-231
We measured the serum levels of tamoxifen and 5 of its metabolites in
serum from 7 premenopausal and 9 postmenopausal women during the first
56 days of treatment. The serum levels of N-desdimethyltamoxifen were
higher in postmenopausal women compared to premenopausal women (P< 0.
02). A similar trend was observed for N-desmethyltamoxifen (P=0.06).