Sildenafil acts as the active ingredient in Fildena 25 tablets. In Fildena 25 tablets it is taken 1 hour before intercourse, after which its effect lasts for 4-5 hours. Fildena 25 Mg tablets are one of the best tablets in ED and are widely used. Take Fildena 25 tablets only once a day, and if you want to see the effect of these tablets quickly, take it on an empty stomach as taking fatty food takes time for the drug to take effect.