Enadoline is a drug which acts as a highly selective κ-opioid agonist.
In human studies, it produced visual distortions and feelings of dissociation, reminiscent of the effects of salvinorin A.
It was studied as a potential analgesic, but abandoned because of the dose-limiting effects of dysphoria, which could be expected from a κ-opioid agonist. There was mention of its potential in treating comatose head injury or stroke victims, where that type of side effect would be immaterial.
When enadoline was first reported in 1990, it was "the most potent κ-selective analgesic ever reported ... 25 times more potent than morphine and 17 times more potent than U-62066".
I'm a believer
I fell down in sorrows garden
Wet night flowers
Red and black
Push me up
They can't give me up
They taste my touch
I tell them baby
I call them baby baby baby
They are crushed
Stars spit down
They try to hammer me underground
There is a black rainbow astride
This hallowed ground
Black rainbow
I pull it down
I pull it down
This nervous night
Swallows the eye
I drown my hands
I lay them down
The fools
Seduction tools
Let you go
Into the sun
The earth tightens
The dirt delivers me
I believe
I'm a believer baby
I believe you
Brought me
Undone
Don't push me away
Don't give me away
Believe in me