KW-8232 reduces the biosynthesis of PGE2 in mouse osteoblastic cells.KW-8232 free base is an anti-osteoporotic agent.

KW-8232 markedly decreases urinary calcium excreation in the neurectomized rats only at 30 mg/kg, and highly reduces urinary pyridinoline and deoxypyridionline excretion which are markers of bone resorption in neurectomized rats. KW-8232 inhibits bone loss may be attributed to the lower prostaglandins (PGs)-stimulated bone resorption via regulation of PGE2 production.KW-8232 (3, 10, 30 mg/kg, p.o.) potently increases the femoral bone mineral density (BMD) of immobilized legs of rats, and affects immobilization-induced abnormal bone turnovrer.