Fosamax (also known as alendronate) belongs to a class of drugs called bisphosphonates, and used to treat osteoporosis and Paget’s disease.
It hinders the process of bone breakdown in the human body, while increasing bone mass. It also alters the cycle of bone formation, allowing for bone strengthening over long periods of time. Bisphosphonates, such as Fosamax, can also reduce bone pain associated with breast cancer and multiple myeloma. But many Fosamax patients have experienced spontaneous femur fractures (thigh bone), while performing normal, everyday activities such as walking down steps.