um, no. I was saying EXACTLY what solistus was saying.
it is theoretically possible (and proven) than MAOI will orally activate drugs that are usually inactive orally (DMT, 5-MeO-DMT). But these drugs are already active when insufflated, injected, or vaporized so the MAOI is only protecting the drug from metabolism in the gut.
MAO enzyme is specifically focused on destroying monoamine neurotransmitters so they do not build up and cause a toxic reaction.
if a drug is not metabolized by MAO, then the drug will not see any change when combined with an MAOI. it's that simple.
since MAO is present mainly in the gut to protect us from exogenous neurotansmitters (tyramine etc), it stands to reason that drugs that are not active via IV/insufflation will not suddenly become active when combined with an MAOI.
solistus: i would bet good money on 4-aco-DMT being wildly potentiated by oral MAOI. from my own experiences with syrian rue + psilocybe shrooms, the trip is qualitatively much more intense than standard shrooms, and quantitatively requires about 1/3 to 1/2 the usual shroom material. if you combine your usual dose of 4-sub-T with an oral MAOI, be prepared for a 4-6 hour fully immersive time-travel experience. the drop back to baseline is very abrupt as well, one minute you are in space and the next you are staring at the wall wondering how you managed to reassemble your brain in one piece.