Firstly, I feel it is somewhat my duty to remind you to please use the search function to avoid the accumulation of useless threads. There has been much said about this topic already. Sorry if this is harsh, but it is an important tool that was made for this very reason. Please check it out in the future!!
Secondly, it really depends on what harmalas you have available. Almost all of my harmala experience is with Harmine HCl. I do have some experience with syrian rue seeds as well, but purified harmine HCl was just so superior that I don't believe that I will ever go back to the syrian rue.
With the harmine, I liked oral consumption the best. The taste of these alkaloids isn't bad, but it definitely isn't pleasant, so I disliked sublingual administration for mainly this reason. Also, it doesn't last nearly as long in my experience as oral administration and wasn't near as powerful. You may get a little more nausea with oral consumption but it just adds so much depth to the vaped DMT experience I feel that it is totally worth it. IME, with harmala dosages, I like to err on the side of a little more rather than a little less to make sure I get the full package. You can be sure that you are adequately dosed on the harmalas when you start getting weird effects with motion and tracers. It is a pretty unique sort of visual effect.
With that being said, sublingual administration will still potentiate and lengthen the spice journey and will do so with far less. Usually, about 50 mg sublingual worked out to be a consistently effective dosage. I'd wait about 15 minutes to vape the spice after sublingual administration.
Orally, I would usually take 250-300 mg of the Harmine HCl, and mix it into a shot glass filled with orange juice and a generous squirt of lemon or lime juice. Allegedly, from what ive read, the acidity will convert the HCl (maybe freebase too?) alkaloids into their citrate form. I am no chemist so I can't comment, all I know is that this concoction masks the bitterness of the harmalas pretty well and seems to help out with the nausea at least a little bit. Could all very well be psychological. Make sure you mix it up very well for a good 5 minutes or so, so that it is evenly distributed. With oral dosing, I usually wait about an hour to vape the spice. This seems to add a lot of allegory to the DMT, enhance the clarity of the visions, and lengthen the experience by a solid 5-10 minutes. What is really nice with this combination, especially with changa vs. straight spice, is that you can just keep vaping away and keep the experience going. Very similar to a shortened pharma experience, but way more visually active, IME.
Syrian rue, in my experience, was by far the least pleasurable way of taking harmalas. In both experiences, I ground up 4 grams of seeds the best I could, and then mixed them with orange juice and slammed it back as quickly as possible. There was significantly more nausea with the syrian rue; almost to the point of it not being worth the potentiation. I would strongly suggest either obtaining purified harmalas or ordering bulk syrian rue/caapi and performing a Manske.
Best of luck to you!
I would also like to agree with Jin. DMT_Tom, that post was so insanely rude that I don't really know how to react. The way you attacked Hiyo was completely uncalled for; he took the time to respond to your thread and give you valuable advice and how you treated him does not reflect the attitude we pride ourselves on at the Nexus. You are to treat everybody here with respect. Please refer to our Attitude section.