I've been on Anastrozole for almost 2 years. At first I really suffered from joint pains, but that eased with time. It has severely affected my bones and my hair seems to be falling out a bit more than I'd expect, but I don't know if that's age or the Anastrozole. It also has caused hot flashes, skin dryness and fatigue. I'm post menopause, so some of these issues I would expect with age, but I never really experienced hot flashes before and my skin was a bit dry, but nothing like it is now. Still very thankful this option is available though and have no plans of stopping.