Most of men age between 20 to 60 suffering from Erectile dysfunction. In the year 1998, one solution has been discover in the form a pill called Sildenafil which works like magic to treat ED. People are using this drug commonly to stay longer in bed. But the question is that how long does sildenafil last? Is there any side effect of taking it? You can all the important information about it on Bluekama. Visit Now.