If I were you, then from now on I would take Aspire 30-45 minutes before sexual activity. It kicked in for me within about 15 minutes. You'll experience the potential for up to 3 days, so don't waste your Aspire by popping them like candy.
I experienced very uncomfortable congestion, but that was it. No headache or anything. I have a sample of the Lite, which most people have experienced no sides from. I'll be using it next weekend and reviewing it. To help with the negative side-effects, trying downing it with a glass of OJ. I'll be doing this next weekend, when I down the Lite. I'll also keep some Afrin nasal spray nearby, just in case.
Enjoy yourself! I sure did. Erection frequency, quality, and recuperation time were fantastic.