Paper II
2025 March (Supplementary (SAY)) (2019 Scheme) · 100 marks · 180 min

Question

Enumerate SERMs. Write in detail about any one member. (2+4)

Q104 marksShort Answers

Answer

SERMs: Tamoxifen, Raloxifene, Clomiphene.

One member in detail — Tamoxifen A selective estrogen receptor modulator, acting as an estrogen antagonist in breast tissue while behaving as a partial agonist in the endometrium and bone. Mechanism: competitively binds estrogen receptors, blocking estrogen-driven proliferative signaling specifically in breast tissue. Uses: ER-positive breast cancer (adjuvant and metastatic therapy), chemoprevention in high-risk women. Adverse effects: hot flushes, increased risk of endometrial hyperplasia/cancer (from its partial agonist action on the endometrium), venous thromboembolism, and an increased risk of cataracts with long-term use. Its bone-agonist action incidentally helps preserve bone mineral density, an added benefit distinct from its anti-tumour action.

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