Okay, name brand was over $250 (US) without insurance and I had local grocery (Kroger) match Costco's generic price of $5.85!!!! Wow, bowl me over!
So far, no difference. One complication in the midst of the brand to generic change, pdoc upped my lithium. Although I'm experiencing a med change on two fronts, I think I'll be able to tell them apart.
Thanks for your input, it's much appreciated.