I don't know that I'm a candidate for Viagra or any Rx treatment. I'm 48, and have no erection problems. I've always had an extremely strong sex drive and can fuck 5-6 times per day.
Recently, I start having erection problems after I've cum twice.
Here's where it gets tricky. My partner is hitting her premenopausal sexual peak and is insatiable. We fuck 10-15x per week. No complaints here and I've always been the more horny in our relationship.
This leads to us having frequent fuck fest benders. We'll take a weekend trip and spend 3-5 days having sex.
At this point, I am starting to have trouble getting hard for that 3rd round ..or the 1/2nd round of day #2 or day #3.
My erection is noticably less rigid.
I'm in pretty good shape and diet is relatively clean.
I've contemplated getting a Rx for some of these weekend extravaganzas. In January we're celebrating a significant milestone and will be going away to an island for a week. I'm sure it will be non stop sex, so I'm wondering if some boner pills might be good for occasions like that.