This is the description of Bayer Aspirin in the main Norwegian registry. You’ll note that the biggest, indeed the only, package is 20 tablets.
http://www.felleskatalogen.no/medisin/aspirin-bayer-ab-546502
There are bigger boxes, but those are microdoses intended as bloodthinner.
The reason they jumped all over the aspirin (they claim) is that there’s a danger of bleeding. The relevant legal stuff can be hard to find and is generally hidden in discussions by the “authorities”, who always sought to keep knowledge of medications away from the plebs. “Felleskatalogen”, for example, was a black market item until seventies. No one but doctors and health leaders were allowed a copy.
As promised, I stopped by a pharmacy today (right across from where I was doing some shopping anyway) and asked whether there was some EU rule that limits aspirin purchases. Uh, no. Buy all you want.
Still don't see any proof for your initial claim (WHICH IS WHAT I RESPONDED TO) that the EU only allows the purchase of a few aspirin tablets per day. Also, I think I've shown that aspirin is dirt cheap here (OK, still cheaper in the US), by any reasonable daily consumption measure - even if you go through a whole pack of 30 500mg tabs/day (highly unlikely I think). If you can't afford a buck for aspirin per day, you might have a bigger problem.
So let's drop the antagonistic crap about some outlandish claims - best of luck to you and your aspirin supply.