I AM NOT A MEDICAL DOCTOR AND NO HUMAN SHOULD EVER EVEN CONSIDER ACTING ON ANYTHING I SUGGEST.
With that said, it (should be) well known that piracetam requires aldosterone to confer maximum benefits. There is at least one good thread on the topic.
What I have never seen suggested is the cheapest way to raise aldosterone: potassium. KCl can be bought in most supermarkets in the US as a salt substitute. I imagine, though would not recommend, trying 1/2 tsp 3x daily and building up to 1.5 tsp 3x daily to increase the benefits of piracetam. I've got a few other irons in the fire, so probably won't get to a trial until sometime January / February, but if any piracetam veterans want to give it a shot, please do and share. PS may worsen "adrenal fatigue"