You can also buy cannabis flowers in Christiania.

I'm told if you want other drugs, they aren't sold on Pusher Street itself, but on the side streets. Someone will direct you.

(I really am just told this, although it's from people I'd expect to know.)

Don't try to ask that in Christania you might end up in trouble or atleast get an angry answer. Drugs aren't sold on the side streets either. They are sold everywhere outside christania like by the central station. Take if from someone who spend every day there. Got a friend who was drunk and was doing cocaine in one of the establishments there and when it was discovered he got beaten up and banned from the place.

I assume those guys in the know was talking about the side streets outside Christiania? While drug trade can happen everywhere it is actually pretty controlled in Christiania because it is a tight-knit community which is self-policing. If you want to buy drugs (besides Hash) in Copenhagen you go to the sketchy areas behind the Central Station.

That's not unique to Copenhagen or Christiania in particular.

In any city it's easy to find drugs if you want to. Just don't look like a cop and you'd be surprised at what you can find if you ask around.