my neuro just put me on Nuedexta (beyond pricey!!). Ironically it is comprised of 20mg Dextromethorphan HBr and 10mg Quinidine sulfate.

I had very good response while on the 2week sample bottle of capsules. Went to fill at pharmacy and learned you must be a millionare to afford it... Apparently there is some rule preventing the compounding of ingredients in order to make it less costly???