bldonick, Thank you for your excellent reply. Great minds think alike, I was thinking a full 4 units or perhaps 5. A PA handles all of the ED stuff at my Uro's office. When I left after the shot to bring down my erection, he said to try eight units next time. There was no way I was going to do that ...

I'm new to injecting trimix. My formula is called "standard" and is: PGE1 8.3, Phentolamine 0.83 and Papaverine 22.5. All are mcg/ml. I had my first shot at Uro's office six days ago, ten units, 1/10 of the 100 unit syringe. Erection lasted four hours, even after taking three Sudafeds, 90 ...