I always Buy Viagra though I actually have a choice between Cialis and Levitra too. It was funny how this came to be that I had three choices for my erectile dysfunction medication but it is the truth. You see I have a brother who is a doctor and he was the one to first prescribe me Viagra back then for the first symptoms I ever had with this sexual dysfunction. I really liked what the effect Viagra had on me and so I continued using it up until the time I had a checkup with our family doctor and since he knew about my dysfunction, he also told me to try Cialis which I complied with and also found it to work just fine, and lastly, when my I once ran out of my stock of Viagra and I could not find any available one within my area and I needed it desperately, I had a friend who had Levitra with him at that time and so I asked for one and like the others, it worked perfectly well with me too. So now I had to come to a decision as I would be making an order online in my online pharmacy for around 6 months worth of medications and of course, I could only buy one of the three. So in the end I chose Viagra which was the first one ever of my erectile dysfunction medications I used..