Drug Gene Type Source N-Desmethyltamoxifen CYP1B1 Text_Mining(decreases(activity)) CTD N-Desmethyltamoxifen CYP2D6 Text_Mining(decreases(activity)) CTD N-Desmethyltamoxifen CYP2D6 Text_Mining(decreases(hydroxylation)) CTD N-Desmethyltamoxifen CYP3A4 Text_Mining(decreases(activity)) CTD N-Desmethyltamoxifen CYP3A4 Text_Mining(decreases(chemical synthesis)) CTD N-Desmethyltamoxifen CYP3A5 Text_Mining(decreases(activity)) CTD N-Desmethyltamoxifen ESR1 Text_Mining(affects(cotreatment)) CTD N-Desmethyltamoxifen ESR1 Text_Mining(decreases(reaction)) CTD N-Desmethyltamoxifen ESR1 Text_Mining(increases(stability)) CTD