I switched from Anastrozole to Tomoxifin because of memory loss with Anastrozole. Unfortunately shortly after starting on Tomoxifin, I broke out in severe hives. It appears that I’m allergic to something in Tomoxifin. My doctor then switched me to Exemestane. It’s better for me, but I still have some minor side effects. I don’t think any of these drugs are free of some kind of side effects for most of us. We just need to find the one that’s has the least side effects for each of is individually. It’s certainly not pleasant, but I suppose it’s better than cancer…