Earlier quoted context omitted.
I'm pretty sure you don't just get random erections unless you're engaged in activity that you find sexually stimulating. ...so yes, probably.
> I'm pretty sure you don't just get random erections unless you're engaged in activity that you find sexually stimulating I think that's the case for Cialis but Viagra should make you "pop" regardless of what activity you're doing.
It takes about an hour to take effect (usually less for me) and lasts a little over 4 hours with some lingering effects for several hours later, with diminishing effects towards the 4 and above hours.
If I’m sexually stimulated during that time physically and or mentally, everything works like it should (erection). If during that time even when I would normally see peak effects around the 50 min to 90 min mark I’m driving or doing taxes or whatever non-sexually stimulating activity one might do, no erection at all.