Having used PT – 141 I first found out that it takes me several hours to begin feeling a little bit aroused. That being said, it doesn’t seem to make me horny, until my wife does something, anything to spark my interest. Then, it acts as an aphrodisiac for sure. I immediately get a very stiff erection and when I ejaculate. It’s very strong. Just for the record, I’m a 73 year, old male, with a history of heart disease and it was prescribed by my physician. Additionally, I have found taking something like super beats helps out quite a bit (boosts, nitric oxide). I have the availability of both Viagra and Cialis, but using PT 141, it’s not necessary.