Carebear, my only brand name med is my thyroid. I take Synthroid, and numerous doctors have said it's better than the generic. I think Levoxyl is generic, but I'm not sure. When I switched from Levoxyl to Synthroid, I noticed my palpitations were less frequent. That's not a scientific observation, but I did notice it. My insurance won't cover the brand name,so I have to pay for it, but it's worth it to me.