Its just banisteriopsis muricata. Not banisteriopsis muricata caapi
The muricata i had was very weak, but some said it was decent...
Yes, you can brew it by itself. For info on the effects of vine-only doses just do a search
(btw, i hope you don't mean you'll be using several pounds of the mhrb in your brew... I'd start with a few grams)
good luck :]
<Ringworm>hehehe, it's all fun and games till someone loses an "I"