DEAR DR. ROACH: My primary care doctor has prescribed the medication Evenity for my osteoporosis. I have been on Fosamax for about three years, but my recent bone density scan went down slightly in ...

Fosamax is a brand name of the generic drug alendronate. It helps treat osteoporosis due to menopause or steroid use. It works by altering bone formation and the breakdown of the bones in the body.