The drug Argenine (sp?) is the drug for Ed. This can be used to offset the side effect of the drugs your are taking. Urologist will know about it. Consult an urologist .
Hey man, I've heard a urologist say not to be on propecia. I would remain off of it. I would go see a urologist who can interpret your blood work (and maybe send you for more blood work checking whatever he thinks is best). Then look for possible treatments to ED caused my propecia. A urologist may know (if one doesn't, a different one should). It might be taking something to get your levels back in balance or something like that. It's happened to a bunch of guys, it's a known issue.
For hair, what's worked for me is this natural product from "shen min" called DHT Blocker. I've taken 3 capsules a day. It takes a couple months or so to start noticing anything. But for me, I used to have clumps of hair in my hand every day, and then I didn't. And I noticed it stayed more on my head. If your hair loss is caused by an excess of testosterone/DHT - when the excess leaves the body it weakens the hair from my understanding - then this counters that. I'm not an expert on this, but this helped me! I wouldn't think this would affect ED - could always run that by the urologist too