Duration? Less than 5 minutes. Zero would have been better. Even 15 minutes would have been OK.

I am a new member. Age 79, used Sildenafil for 5 years until it quit working a few months ago. My urologist suggested Trimix injections. Started this week. I got through the needle thing OK. First event was 10 units (half limp); second event 20 units (full hard but short duration); third event 30 un...