how long tamoxifen stay in system

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Although 5 years of tamoxifen has been the standard adjuvant endocrine therapy for premenopausal women with hormone receptor positive breast cancer for more than 2 decades, emerging results suggest that either switching to an aromatase inhibitor after 5 years of tamoxifen when postmenopausal or continuing tamoxifen for an additional 5 years can further decrease relapse risk nolvadex pct dose very low b, c, d

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