Alendronate Sodium is a Bisphosphonate that Acts as a Specific Inhibitor of Osteoclast-mediated Bone Resorption. Bisphosphonates are Synthetic Analogs of Pyrophosphate that Bind to the Hydroxyapatite Found in Bone. Alendronate Sodium is Chemically Described as (4-amino-1-hydroxy Butylidene) Bisphosphonic Acid Monosodium Salt Trihydrate. A Drug Used to Treat Certain Bone Conditions, such as Osteoporosis and Paget Disease of the Bone. It is also Being Studied in the Treatment of Hypercalcemia (high Levels of Calcium in the Blood) and Bone Pain Caused By Cancer. Alendronate Sodium Slows the Breakdown of Bone and Prevents the Loss of Calcium. It is a Type of Bisphosphonate.treatment of Osteoporosis in Postmenopausal Women; Prevention of Osteoporosis in Postmenopausal Women At Risk of Developing Osteoporosis; Increase Bone Mass in Men; Treatment of Glucocorticoid-induced Osteoporosis in Men and Women, Treatment of Paget Disease of the Bone. and It is Prescribed for Both Men and Women Who have Developed a Form of Osteoporosis Sometimes Caused By Steroid Medications such as Prednisone.