Hey good people. The title says it all. This is for Pharma.

SWIM's strongest trip with very little nausea was acetates, plus most of the time freebase or fumarate is converted to ascorbate or citrate before consumption anyway and HCl in the stomach in the end.

SWIM has had success with using vinegar to remove the DMT from the solvent (could be Naptha, Limonene/Xylene)

Then the vinegar can be evaporated. SWIM used a baking tray over a pot of simmering water, didn't seem to hurt the yield.
The goo is then scraped, measured and dissolved in hot water, concentration recorded and a perfect tincture is made.

SWIM has personally never tried fumarate though acetone makes his nose cry.
His freebase pharma a much more nauseating than the much much much stronger acetate dose though.

Just an opinion from SWIM.

for pharma, go for fumarate