First off let me say, I bought some Liq Cial from AG's and it def is the shit! I used to take a Viagra here and there and decided to give the Cial a go. It works great but that whole two dayz of spontaneous boners can be embarassing! I'll be walking around at work a day or so after taking a hit and all of a sudden, I got wood. And anyone who uses this stuff knows those aren't your normal boners! I got to flip that fucker up in my underwear band and walk with limp for a half an hour! At least with the Viagra, you pretty much have a 4 hour window after taking it! Just my 2 cents.