instruction: hello doctor I have a query related to the use of viagra I have the problem of erectile dysfunction sometimes though I get an erection I am unable to sustain the hardness and do intercourse I took viagra 50 my once and it worked well is it safe to use viagra to get my wife pregnant will viagra cause any effect on my fertility will it affect the sperms hope to listen from you soon
output: hi I read your query and understand your concerns about the effect of viagra sildenafil on sperm or its quality I like to inform you that the formation of sperm is an independent process from erection you will be surprised to know that the sperms that will be released in the next few sessions may have completed their manufacturing weeks back if not the months in other words sperm formation takes around two and a half months and has no casual relationship with the erection or mechanism of erection which is affected by viagra on the other hand viagra acts on certain receptors on the blood vessels and remains effective for a few hours 6 hours I mean to say that as per the available literature no harm is made to sperms or sperm quality by viagra even on the frequent use you can safely go ahead with viagra to father a child