aspire
my gf works at drs office, i dabled with different ones levitra, cialis, and viagra, ( got different ones ), 25, i believe , i know deffinately 50 mg and 100 mg, i tried them all just to see, i noticed some headaches with them and sometimes stuffy nose, but i dunno if thats from pills i got allergies bad, but i took aspire to, i would say that the best of viagra, cialis and levitra is the viagra 100, but not for the 36 hour benefit, but overall of those mixed with aspire, i would say its not even a competition. you can get aspire online and really cheap and if you loook online to try to get viagra or cialis without having prescription you pay 30 bucks a pill. i prefarbly like aspire, but dont take my word try them out and you will see what one works betta:cheers: