I am a male in middle 30s I failed to have erection with my wife with Viagra why!
Question:
I am a male in middle 30s I failed to have erection with my wife with Viagra why is that?
Answers:
Half the people who try it don't refill the prescription. Some doctors say the 50% dropout rate is because half the people are unsatisfied with the pill. Pfizer says that Viagra studies show the drug doesn't work for only about a quarter of people who try it, and that "interpersonal issues" probably contribute to many of the other dropouts
Levitra and Cialis work the same way as Viagra, blocking the same enzyme. Though it's unlikely any one works better than Viagra overall, slight chemical differences mean that if one brand doesn't work for a patient, another one might.
We tried to make a comparison of cialis, levitra and viagra and putted the results into a simple table - http://www.viagra.su/difference-viagra-l...
I hope it'll be helpfull.