Which medications in the drug class Estrogen Derivatives are used in the treatment of Hypercalciuria?

Updated: Apr 23, 2019
  • Author: Stephen W Leslie, MD, FACS; Chief Editor: Vecihi Batuman, MD, FASN  more...
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Answer

Estrogen Derivatives

Estrogens should be used in postmenopausal women with hypercalciuria whenever possible. Their action is similar to that of the bisphosphonates.

Estrogens are used to increase the serum estrogen level, which, in turn, decreases the rate of bone resorption. The lowest effective dose at the shortest duration necessary should be used. Estrogen therapy reduces bone resorption and retards or halts postmenopausal bone loss. Estrogen therapy is no longer a first-line approach for the treatment of osteoporosis in postmenopausal women because of increased risk of breast cancer, stroke, venous thromboembolism, and coronary disease. The FDA recommends that other approved nonestrogen treatments be considered first for osteoporosis prevention.

Conjugated estrogens (Premarin)

Estrogens can directly affect bone mass through estrogen receptors in bone, reducing bone turnover and bone loss. Estrogens can also indirectly increase intestinal calcium absorption and renal calcium conservation and, therefore, improve calcium balance. When prescribing solely for the prevention of postmenopausal osteoporosis, therapy should be considered only for women at significant risk of osteoporosis and for whom nonestrogen medications need to be carefully considered.

Estradiol (Estrace, Estraderm, Menostar, Vivelle-Dot, Climara, Estraderm, Alora)

Estradiol restores estrogen levels to concentrations that induce negative feedback at gonadotropic regulatory centers; this, in turn, reduces the release of gonadotropins from the pituitary. Estradiol increases the synthesis of DNA, RNA, and many proteins in target tissues; it also inhibits osteoclastic activity and delays bone loss. In addition, evidence suggests a reduced incidence of fractures.

Estropipate (Ortho-Ext 0.625, Ortho-Est 1.25)

Estropipate is indicated for the prevention of osteoporosis. When estrogen therapy is discontinued, bone mass declines at a rate comparable to that of the immediate postmenopausal period. No evidence suggests that estrogen replacement therapy restores bone mass to premenopausal levels.


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