| abstract |
(57) [Problem] To provide a bone resorption inhibitor, particularly a therapeutic agent for Paget's disease. SOLUTION: For example, a bone resorption inhibitor or a therapeutic agent for Paget's disease containing a vitamin D antagonist represented by the following formula as an active ingredient. [In the formula, m represents an integer of 1 to 3, q represents an integer of 0 to 3, r represents an integer of 0 to 3, and X represents a carbon atom or an oxygen atom. However, 1 ≦ q + r ≦ 3. ] |