Kondo S, et al. - Experts aspired to analyze the safety and effectiveness of eldecalcitol for the treatment of osteoporosis in male osteoporosis patients. Yielded data affirmed the safety and effectiveness of eldecalcitol for the treatment of Japanese male osteoporosis patients. In order to minimize the risk of hypercalcemia and renal impairment while maximizing the effectiveness of eldecalcitol, careful monitoring of serum calcium and estimated glomerular filtration rate, both before and during treatment were found to be essential.