I ordered about 400mg of IDRA-21 and it came in the other day. Just to be safe, because it's a really new research chemical and there's very little published information on human use, I've read about 5 or so research papers on its effects on lab animals at varying dosages in relation to body weight (also Reddit/Wikipedia/Google). However, I remember there was (at least) one person in this group who has used it. For anyone that has any additional information on IDRA-21, especially with regards to dosage and/or subjective experiences, please link me or post.
I've read some scary stuff about people having bad experiences, which I think was more an error of dosage and getting psyched out, so again, I'd really appreciate anything you all might be able to come up with. Also, if there's any interest about what I've read about research done to date, please feel free to ask :) I'm not an expert or anything but I'll do my best to explain whatever's asked. It's been about 5 hours since I've taken a dose of roughly 3.5mg of IDRA-21.
I've noticed no notable side-effects; heart rate has been stable, no sweating, focus has remained constant/normal (and largely unaffected), and breathing pattern is perfectly normal/unaffected. The only negative I've noticed is a very, very minor headache, but I took a Tylenol and feel perfectly fine – I suspect it was due to dehydration more than anything since I had it prior to dosing. So far so good. I'll up the dose to 5mg in 24 hours to see if there's any notable effects. No other RCs/Supps have been stacked. Using caffeine (coffee) doesn't seem to produce a negative reaction.
For reference: I'm a 280lb, 6'2" Caucasian male. I imagine bodyweight is likely an important factor to consider when dosing.