trimix dosing qustion

There are simply too many variables in play to confidently answer your question. It is true that men tend to get a slightly better reaction to trimix at home and relaxed than they do in the embarrassing and anxious environment of their urologists examining room, thus the need to be somewhat cautious with your first few doses. On the other hand, you don't want to be so cautious that things don't work and you and your partner become discouraged. The reason you get your first jab in the doctor's office is so (s)he can observe your reaction to the drug and fine-tune his/her suggestions for dose titration.

I wish I could be more help but it really is a try it and see what happens proposition at first. One thing that makes a lot of difference is whether or not you have a venous leak. Men who don't leak will tend to find the search for the right dose a finicky and exacting process, often with only a few units separating not-enough from too-much. Men who do have a venous leak will need a higher dose to maintain their erections for the required time as the medicine gradually leaks out along with the blood. The instructions you will get from your urologist will be designed to be safe for a man with good veno-occlusion (no leak) and may seem absurdly timid for a man whose veins don't collapse to help maintain an erection.

Got the dose ready for tonight. This is great stuff, wish I did not need it.

As others have suggested, it's really trial and error. My advice for you is to use an abundance of caution when you're first starting.