Sorry for my delay in replying to responses, but my dearly beloved and I have been on vacation for two weeks.
This is a new drug and only came on the market in 2008. I doubt if it can be gotten at AllDayChemist. The price is about $15 per dose. Our insurance doesn't cover it.
What we've tried is oral meds (no), vacuum (no), Caverject (yes, but penile pain), and QuadMix injections (yes). So far this drug has worked sufficient for intercourse.
My wife has had no burning/itching/other problems with any of the drugs we've used.