I'm 70 and I used Viagra for a few years. Jelqing and kegeling, SERIOUSLY, will get you the same results. At least it did me.
Viagra has side effects, no doubt about it--possible headache, temporary change in vision, (you see a shade of greenish-blue), or at least I did.
It works GREAT if you are losing your erections during sexual intercourse. And for most people, it does bring back the harder erection since Viagra allows more blood to get to your cock. It's a temporary thing, of course.
If you decide to take it (it's expensive unless you buy the generic) you might be interested to know that the drug was originally prescribed to people with heart conditions, and they stumbled on this side effect--it gave the men who were taking it an erection.
I prefer Cialis to Viagra. There are fewer side effects. Like any drug, you don't want to become dependent on it. And keep in mind, that if you start a solid jelqing and kegeling workout on a daily basis, you should get the same results--my 10 o'clock erections went back up to 11 o'clock.
BTW, if you decide to try Viagra, you don't need the 100 mg tablet. Try a quarter of that--25 mg. It should work just as well--unless you have a real problem with blood flow to your cock.
Hope this is helpful.
Goin411by7 aka Horsehung aka LostinSpace