I do believe that may be dextromethoraphan? i know that they are finding out thru research that adding dextro to certain pain meds really kind of 'boosts" the effects,or the anelgesic affcts of it.its an enhancer type of med when added to them.i just was not aware that there was any actual med out there,espescially darvocet that they had actually done this to yet.

I would just try googling something like dextromethoraphan and propoxyphene and see what may if anything,just pop up.I am not sure this is what that refers to but it may be what that name actually refers to.just a thought.FB