I've also tried ginger, dramamine, smoking weed, chewing mint and at best (or worse depending on perspective) it just makes me nauseous but prevents me from being able to vomit. Nausea being one of those most unsettling sensations on the planet can really ruin an experience for me, so I subscribe to trying to vomit everything up which usually gets rid of all the nausea. Many times I can't get everything up though so the nausea will return. My remedy to this is that as soon as I've gotten myself to purge once (I usually aim for the one hour mark), regardless of whether I'm nauseous or not, I usually like to break out the GVG afterwards. Assuming I got everything up, then no harm no foul. If I hadn't gotten everything up, then 1-2 rips of a small dose out of the GVG is enough to completely flood the system with DMT sending the nausea levels through the roof, and I'll be damned if I've ever had persistent nausea after taking the hit or two. From there on out I'm nausea free for the rest of the day, and should I decide to smoke more DMT later, it never results in any nausea at all. I use the vaporized DMT as a sort of chemical trigger to my gut which seems to do the trick. The purging itself is by no means pleasant, though I've had some of the most interesting, twisted visuals one can imagine with my eyes winced shut as my intestines proceed to continually turn themselves inside out. Luckily afterwards, by the time I shuffle back to my couch, I'm on cloud 9.