Your friend can use straight caapi leaf, depending on the strength you may or may not feel it.. but it will do something.
A simple extract of Caapi can be made by using leaf and/or vine soaked in alcohol for a few days.
I keep a big jar of Caapi + leaf in alcohol which i usually use to make changa.
I dont really know how much of the harmalas go into the alcohol and if the alcohol changes them or not.. might be good to freebase a bit with sodium carbonate as some have mentioned here but I have not tried that yet myself.
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