In the past I have taken both brand name and generic Wellbutrin XL and noticed a significant difference. I've tried to switch from brand name to generic twice in the last couple of years, and both times came to the realization that the generic Wellbutrin/ Bupropion XL is nothing like brand name. But recently my insurance co-pay has gone from $50 to $150, and I'm wondering if anyone has found a generic Wellbutrin XL that feels equivalent to the brand name. Any opinions on what the best generic is?