Using Spice 7 (Source)

Aye, I have a number of the adrenal glands myself, and have taken a couple to see how they work. I havent seen the kliknik glands yet though. Anyway, the adrenal gland does exactly what the post says. And the downer is vicious, actually longer than the duration of the spice itself. Helluva kick while its working. Even with my armor on it helped regen my stats incredibly fast.