Agents that inhibit bone resorption and/or favor bone mineralization and bone regeneration.
Selective Estrogen Receptor Modulators
A structurally diverse group of compounds distinguished from Estrogens by their ability to bind and activate estrogen receptors but act as either an agonist or antagonist depending on the tissue type and hormonal milieu.
Estrogen Antagonists

Compounds which inhibit or antagonize the action or biosynthesis of estrogenic compounds.