I took the 1st pill at 8:45pm and the others at around 9:50pm.
It supported erections, induced a strong hunger, caused EXTREME hypersalivation, hyperactivity/increased locomotion, anxiety, increased heart rate, and increased blood pressure.

Before going to the Emergency Room, I was at my house standing and walking in circles while making involuntary shivering sounds and movements even though I was not cold.
I ate an entire meal in about 5-6 minutes at 11:30pm and was still hungry (I had just had a reasonable sized dinner about 4 hours earlier).
Then I was standing in place and litterally had to wipe away drool to prevent it from going down my chin because of how much saliva I was producing.

After about 2 hours from the last pill my pulse was over 170 and my BP was about 180/110.
After about 3 hours from my last pill my HR was 150 and BP was 160/95. Went to the ER and got IV fluids to help flush my system.
6 hours after my last pill I felt completely normal.

Moral of the study, be careful with some supplements.

I looked into this further on the way to the hospital and there are actually around 2 deaths, and 6 inpatient short-term hospitalizations, associated with VERY VERY large doses of YoHIMBINE HCL. Like 2000mg of YoHIMBINE (not Yohimbe).
IT seems that adverse sid effects occur in general around the 20-24mg of YOHIMBINE HCL (extract / active component).

I used the studies they referred to that looked at the accuracy of what was in Yohimbine supplements. I was able to find the specific brand and type used in some of that study.
All you have to do is copy the descriptions the have in the document of each specific bottle they studied.
So the one with the highest level of Yohimbine has 12.1mg and is labeled to have 9mg.
So you search “Yohimbe bark extract (Pausinystalia yohimbe) (2% yohimbe alkaloid = 9mg)” and you find:
GNC Yohimbine 451

The other GNC Yohimbe in the green bottle is NOT NEARLY as effective or strong.