Iv only seen 1 skooma addict in the game , and i have to wonder why they dont try strong stamina potions..
Ok these are the stats from oblivion
Damage Intelligence 2 points
Drain Agility 60 points for 20 seconds
Fortify Speed and Strength 60 points for 20 seconds
These are the stats from skyrim
Restore Stamina 25 points