I'm gonna regret admitting this... but I "plugged" 6 mg one time. Yes as in I dissolved the crushed pills in warm water, put the solution into a 10cc syringe and proceeded to do one of the most undignified things I've ever done....
The effects were great though. Very blissful nodding, but the itchiness was a bit much. Id say its worth trying, but I know some people just cant get past the idea of administering anything through that route..