<qa>  What is the name of the drug that is used to treat osteoporosis?Osteoporosis is a condition in which the amount of bone is reduced, the bones are weak, and there is an increased risk for fractures. Glucocorticoids such as prednisone are prescribed to treat a large number of conditions such as arthritis and asthma. When taken for several months or longer, glucocorticoids can cause bone loss and lead to a form of osteoporosis called glucocorticoid-induced osteoporosis. This study compared the effects of teriparatide, the study drug, with alendronate, an approved drug for treating glucocorticoid-induced osteoporosis. 