Sure its a good idea
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, start of with making a blend 1:1, and see where that gets you.
Passionflower doest have that much MAOI, but makes as an ok herb for changa(tastes like burning bush IMO).
Sure you could use it for pharma, just make sure there is no residual solvent in there. Same rule applies here as with normal pharma, start low.
By the way, please dont double post question's in the forum, it clutters it up. Imagine if everyone of us double posted questions in different parts of the forum, things would get very messy. Il delete the other one you started and leave this one here.