I have heard that generic brand of Anastrozole has less side effects than its original brand but there are many generic brands. My pharmacist (who is not knowledgeable) gives me every time different g...
Like @AllyJay, I am on Letrozole. I do have side effects (bone density and vaginal atrophy) but both are almost certainly caused by the active ingredient so I have stayed on the brand first prescribed rather than switching around, while using exercise and oestrogen cream to help with those side effects. Intolerance reactions to some fillers used usually have different side effects.