Alendronate is in a class of medications called bisphosphonates. It works by preventing bone breakdown and increasing bone density (thickness).Click to see full answer. Also, is alendronate a steroid?Alendronate is used to treat osteoporosis caused by menopause, steroid use, or gonadal failure. This medicine is for use when you have a high risk of bone fracture due to osteoporosis. Alendronate may also be used for purposes not listed in this medication guide.Also Know, who should not take alendronate? You should not take alendronate if you have problems with your esophagus, or low levels of calcium in your blood. Do not take alendronate if you cannot sit upright or stand for at least 30 minutes after taking the medicine. Alendronate can cause serious problems in the stomach or esophagus. Simply so, is alendronate sodium the same as Fosamax? Alendronate is commonly known by the brand name Fosamax®. Fosamax® is a bisphosphonate and is used in the treatment of osteoporosis. Fosamax® decreases the rate bone cells are absorbed. This reduced absorption allows the body to increase bone density, which in turn reduces the risk of fracture.Is alendronate a controlled substance?Alendronate is used in the treatment of osteoporosis; prevention of osteoporosis; paget’s disease and belongs to the drug class bisphosphonates. Alendronate 5 mg is not a controlled substance under the Controlled Substances Act (CSA).