I tried brand Abilify vs generic Abilify. Truthfully, I had too many side effects with generic. It may be the same with other generic meds. I don't know. I could not tolerate the side effects of generic and went back to brand and am doing well. If you are doing well on brand, I suggest to stay on it. My doctor says that although the ingredients are the same as the previous poster states the fillers or non-active ingredients may cause some side effects one does not expect. If you can tolerate such side effects, then please don't mind me. But, I could not.