I had been having more and more difficulty getting hard and erect in the last couple of years. It happens but takes longer than it should and requires more effort from my partner. Even with a max dose of viagra. I was about to chalk it up to getting older.
But I did some google research and found out that there is a small but significant percentage of men that have problems when using propecia. So I decided I would rather be bald than limp and quit taking my propecia. After 6 weeks of so of no propecia I can say my erections are back to normal--you know, throwing that football through the tire swing normal.
So, if any of you guys are using propecia and begin to experience problems, try going off the drug for a couple of months and seeing if the issue doesn't resolve.