Mine is 30 pap/1phen/10alp, that is to say---30mg per 1 ml volume of papaverine, 1mg per 1 ml volume papaverine and 10mcg (note the change from mg to mcg, much smaller amount) alprostadil. As I said, most guys use the standard of 30/1, with some variance in the last of either 10mcg or 20mcg. By the way, in case you don't know, Bimix is the same ratio of just the first 2 chemicals, less the alprostadil. there's also a Quadmix or 4 drug mix, but it's fairly uncommon here on the forum. Maybe one or two guys over my 3 years here have used it.
So, if your formula is 30pap/4phen/40alp, then yours is stronger than mine, mine being 30/1/10 versus your 30/4/40. That could go a long way to explain your problems with 5 hour erections. Have you ever tried the bimix? That's another possibility, if you and your doc is willing to experiment a little. I would suggest you ask your doc why your drug ratio is so much stronger than our 'normal' standard amongst us Prostate Cancer surgery users. After re-reading your first post, I think the problem is the combo of the phen being so strong and the double strength of the alprostadil. Since he is still giving you 'samples' I'd ask him about
trying something with less alprostadil in it. Maybe even try the standard 30/1/20 mix, and see, if he is still trying different things. Also, are you using an insulin syringe to inject? If so, are you reading your .1 and .05 as cc's, if so does the units mark equal 10 units for the .1 and 5 units for the .05 measure your are stating? If so, most guys here, as a general rule, require less than 10 units and more so less than 5 units of much less strong formula than what you are using. Does this make sense or am I jabbering?