quantitative analysis of these metabolites in sera from patients undergoing chronic nolvadex therapy ( 20 mg approximately b.d . ) has shown that the mean n-desmethyltamoxifen concentration was 481 ng/ml , the mean metabolite y concentration was 49 ng/ml and that desdimethyltamoxifen concentrations were in the range 20-40 ng/ml .
C0392762
quantitative
C1514721
range