Sildenafil works well for me in the sense that I need to take small doses and it improves erection well beyond the same day (sometimes for about three days, although in a much subtler way)
My goal is to find a synergy that would stretch it even longer (the effect, i mean

Does anybody get improved erections beyond 24 hours after sildenafil? (I get the usual effects throughout a few hours after taking 25mg, but subsequent days I get "residual effects" that are quite enjoyable, too)
Do you know of any nice synergies? I heard something about Forskoling, being a PDE inhibitor. Would that work?
Sorry about so many non-scientific request/observations here
