I have a couple hits left of a gram of DPT salt that was acquired from a research chemical supplier about 10 years ago. Unfortunately it doesn't seem to be available any more. My practice has been to insufflate about 100mg. I keep something like lemonade or limeade handy to wash down the nasty chemical taste that follows. Onset follows within a few minutes. It has been a while since I've done any, but my memory is that effects build to a peak within 15-30 minutes or so and subside more or less completely after a couple hours. Very powerful psychedelic with lots of flowing, undulating visuals, sense of presence of "others", confusion of the senses (synthesia), ego-death; in short, everything we seek from a molecular ally. I have not quite had it get me to that place of totalilty of immersion in the Manifold of Potentiality that The Molecule (nnDMT) takes me to but that may be a matter of dosage, set, setting, or some other factor(s). There is a bit of a body load for me as gentle spasms of energy course through my body prompting some stretching and trembling. I like to sit in a comfortable recliner and listen to Brent Lewis's music, or lay naked with my sweetheart and undulate with her. Natural settings are wonderful but somewhat overwhelming. I like this molecule quite a bit and wish it was more easliy availabe. I'd love to try vaping some in the freebase form. I think it would be astonishing and transformative.
"You can not see me with your normal eyes, therefore I give you divine eyes with which to behold my mystic splendor." Bhagavad Gita, Chapter 11 verse 8