Nowadays, it have been perfectly examined that there lived no influence of Viagra on fertility(Birth Rate).It was ascertained during the analysis that the company Pfizer carried out  on human volunteers. Men-volunteer meditate sperm action before and after taking the drug. Volunteers took 100 mg of Viagra, which was followed after the analysis of their sperm. As a consequence, it was found that the Viagra doesn't impact either the quality of semen, or the amount and activity of sperm in it.

This information, incidentally, must be brought into consideration in the consequence that your partner is with child for you it is  undesirable since your sperm action is in the admittance of Viagra and  is not diminishing. Hence, prevention of pregnancy is best to be assured in advance, the benefit of choice of contraceptions methods is  presently accessible is large and literally by everyone. For the similar reason, as nearly all  demographists (specialists on Population Earth), a population burst on earth did not fall out in spite of the substantial increase in the figure of men which are  capable of procreation.