All three mods are modular, and unrelated to each other for maximum possible compatibility while editing the effects of these potions *and narcotics. True hardcoe Morrowskooma tries to imitate Morrowind's skooma as closely as possible while only altering the regular skooma.

Morrowskooma is self explanatory, and both Redwater Skooma, and Sleeping Tree Sap potions now have not only more significant effects, but are also quite unique and different from each other.

Redwater Skooma Improved alters redwater skooma to be much more interesting with some situational usefulness while still being very different from regular skooma. And finally, Better Sleeping Sap Tree Potions, now have additional defensive stats- making the drinker more tree like- at the cost of being more vulnerable to fire damage just like a tree.

Starting with True hardcoe Morrowskooma. http://www.nexusmods.com/skyrim/mods/57866/? With the following effects...

Positive Effects: 20+ unarmed effectiveness , 20+ one handed effectiveness, 20+ two handed damage effectiveness, 100 carry weight, 55+ movement speed for 60 seconds.Negative Effects: 285 ravage magicka, 50% less magicka regeneration, 20 less lockpicking and pickpocket effectiveness for 60 seconds, and 88% less stamina regen for 120 seconds.Double-Distilled Skooma Postive Effects: 40+ unarmed effectiveness , 40+ one handed effectiveness, 40+ two handed damage effectiveness, 200 carry weight, 110+ movement speed.Double-Distilled Skooma Negative Effects: 570 ravage magicka, 100% less magicka regeneration, 15 less maxstamina, 40 less lockpicking and pickpocket effectiveness for 60 seconds, and 176% less stamina regen for 240 seconds.

Then Redwater Skooma. http://www.nexusmods.com/skyrim/mods/57865/?

Positive Effects: Fortify Unarmed Damage 50%, Fortify Health 110, Fortify Carry Weight 175, Fortify Two Handed Damage 50%, Fortify One Handed Damage 50%, Fortify Stamina 50, Fortify Stamina Regen by 30% for 48 seconds.Negative Effects: Slow movement speed 50%, drain maximum magicka by 285, drain magicka regen by 50% for 48 seconds.

And last but not least, Better Sleeping Tree Sap potions. http://www.nexusmods.com/skyrim/mods/58060/?

New effects: Slow speed 25%, fortify health 100, drugged (all the vanilla ones), as well as faster health regenerate rate by a magnitude of 55%, 30% stronger blocks, 60+ additional armor, and restore 2 health per second... At the cost of 75% weakness to fire.