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Review
. 2020 Oct:59:100869.
doi: 10.1016/j.yfrne.2020.100869. Epub 2020 Aug 18.

Neuropsychiatric effects of tamoxifen: Challenges and opportunities

Andrew M Novick  1 , Anthony T Scott  2 , C Neill Epperson  2 , Christopher D Schneck  2
Affiliations
Review

Neuropsychiatric effects of tamoxifen: Challenges and opportunities

Andrew M Novick et al. Front Neuroendocrinol. 2020 Oct.

Abstract

Epidemiological, clinical, and basic research over the past thirty years have described the benefits of estrogen on cognition, mood, and brain health. Less is known about tamoxifen, a selective estrogen receptor modifier (SERM) commonly used in breast cancer which is able to cross the blood-brain barrier. In this article, we review the basic pharmacology of tamoxifenas well as its effects on cognition and mood. The literature reveals an overall impairing effect of tamoxifen on cognition in breast cancer patients, hinting at central antiestrogen activity. On the other hand, tamoxifen demonstrates promising effects in psychiatric disorders, like bipolar disorder, where its therapeutic action may be independent of interaction with estrogen receptors. Understanding the neuropsychiatric properties of SERMs like tamoxifen can guide future research to ameliorate unwanted side-effects and provide novel options for difficult to treat disorders.

Keywords: Breast cancer; Estrogen; SERM; Tamoxifen.

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