Yohimbe = bad stuff. It was linked to raising blood pressure. If I recall correctly, it was on the to be reviewed for ban list by the FDA after a few people with already high blood pressure took it as part of a herbal-supplement. You know, fit-all-alignments type deal and experienced a stroke. I’m not sure if it was ever banned completely but diet supplements like uhh .somethingMAX etc started having small stickers for a short bit after that saying Yohimbe free!
I suppose it probably wouldn’t hurt a healthy young male who has no high blood pressure issues, history of strokes or history of strokes in his or her immediately family but why risk a Stroke for what? A better erection? The errection won’t be worth much if your drooling eating through a tube hehe :)