Which medications in the drug class Estrogen Receptor Antagonists are used in the treatment of McCune-Albright Syndrome?

Updated: Jan 05, 2021
  • Author: Gabriel I Uwaifo, MD; Chief Editor: George T Griffing, MD  more...
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Estrogen Receptor Antagonists

Estrogen receptor antagonist therapy represents a newer approach to the treatment of persistent estradiol elevation in girls.

Raloxifene (Evista)

The biological actions of raloxifene are largely mediated through binding to estrogen receptors, which results in activation of estrogenic pathways in some tissues (agonism) and blockade of estrogenic pathways in others (antagonism). Raloxifene increases BMD at the spine and the hip. It reduces the incidence of spine fractures by 30-55% over 3 years. Raloxifene is approved for the prevention and treatment of postmenopausal osteoporosis in women. It is available as 60-mg tablets that are given orally daily. Adverse reactions commonly seen include hot flashes, leg cramps, peripheral edema, flu syndrome, arthralgia, and sweating.

Tamoxifen (Soltamox)

Tamoxifen competitively binds to estrogen receptors, producing a nuclear complex that decreases DNA synthesis and inhibits estrogen effects. It blocks the end-organ effects of abnormal estrogen exposure in prepubertal girls.

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