@anjalima I make a distinction between "side effects" and "reactions." Aromatase inhibitors will, I would imagine, have some level of longer term side effects due to estrogen deprivation. My "reactions" (neurological) to fillers are immediate and short term. I had no reactions to brand name and at the end of my treatment I found a generic that also did not cause reactions. Too bad after I spent all that money on brand name Femara!