Key takeaways
Alendronate (Fosamax) and ibandronate (Boniva) are both bisphosphonates used to treat and prevent osteoporosis, but they have some key differences. Alendronate (Fosamax) can be used by both men and women, while ibandronate (Boniva) is only approved for postmenopausal women. Alendronate (Fosamax) offers more flexibility in dosing, with options for daily or weekly oral intake, and it also comes in different forms like tablets, oral solutions, and effervescent tablets. In contrast, ibandronate (Boniva) is taken once a month as a tablet or as an IV infusion every three months. Alendronate (Fosamax) is recommended as a first-choice option because it lowers the risk of fractures in various parts of the body, including the hip and back, whereas ibandronate (Boniva) mainly reduces the risk of back fractures. Both medications have similar side effects, such as stomach pain and severe jaw problems, but ibandronate (Boniva) has a slightly higher incidence of common side effects like heartburn and joint pain.
