I've taken Psychedelics (LSD & Mushrooms) with MAOIs (Nardil) to no ill effect...although potentiated. Is there any harm in combining 2C-B with an MAOI?
The short answer is that it's not considered to be safe to combine MAO inhibitors with phenethylamine psychedelics. Could you be fine if you did? Of course. I combined mescaline with syrian rue (technically a RIMA, not a MAOi) a few times with no ill effect. That doesn't mean that I or anyone else will always be so lucky. Most (but not all) psychedelic tryptamines and (I believe) all psychedelic lysergamides are fine, though.