i wouldn't do it man, it is very bad shit. i'm guessing you're getting those little brown vials of it? i had a friend who smoked three vials of that shit in one night. the next day he was fucking useless, he couldn't speak in complete sentences, or even really stand up. i've never done it, and i wouldn't recommend you do it either.
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Let us alone. What pleasure can we have
To war with evil? Is there any peace
In ever climbing up the climbing wave?
All things have rest, and ripen towards the grave
In silence- ripen, fall, and cease:
Give us long rest or death, dark death, or dreamful ease.
--Tennyson, The Lotos-Eaters