Methods for (i) inhibiting the induction and formation of osteoclasts, (ii) inhibiting RANKL expression in osteoblasts, (ii) inhibiting the activation of osteoclasts and (iv) inhibiting a decrease in bone density by administering to a warm-blooded animal in need thereof a pharmacologically effective amount of a compound selected from the group consisting of olmesartan and olmesartan medoxomil, a pharmacologically acceptable salt thereof or a pharmacologically acceptable ester thereof.
