150mg snorted will provide a nice experience for 40-50min, but nothing compared to smoked dmt. More ayahuasca-like but shorter.
SWIM does not know if it would work sublingually but the dose should be at around the same range. SWIM feels that the very water soluble fumarate would wash away with saliva before it gets the change of finding itself in the bloodstream.
Need to calculate between salts and freebases?
Click here!
Need to calculate freebase or salt percentage at a given pH?
Click here!