4 grams of syrian rue tea put me into a head-clutching, nauseous stupor for the better part of 4 hours, and I'm typing this at T+7 hrs. I also experienced the most prominent tracers of any of my psychedelic experiences to date, so all-in-all I've had better nights. What went wrong?
I dosed 3 grams of syrian rue tea five days ago without ANY observable effects, yet 4 grams taken 5 days later seemed to have psychedelic effects and kept me hunched over a toilet bowl vomiting. These were the same seeds, and the only difference in my preparation was the use of citric acid in place of vinegar, and also 1 gram of rue. Can I expect variable effects like this from rue whenever I take it? Is 1 gram that much of a difference? and What is the most likely explanation? Thanks in advance of any responses.

Generally the alkaloid % in rue depends on the batch (harvest time, location, etc) not individual seeds themselves so what you are seeing here has something to do either with your personal metabolization or you brewed a better tea the second time.

If you brewed a bunch down at once, or extracted, you could expect less variables.

I'm wondering if the lower pH of citric acid made a remarkable difference in alkaloid extraction? Curiously a friend drank the same brew and was not affected at all in the same way that I was, this also being his first time.

If you dose 3g on a full stomach it will be vastly dimished vs 4g on an empty stomach.

just sounds like personal metabolism to me. Anything can be like that..your body changes every single day. Somedays it is more sensitive than others. A more empty stomach does make it stronger for me.