Fildena 50 is a very effective medicine for the treatment of erectile dysfunction. This drug is also known as phosphodiesterase PDE-5 inhibitor. The main ingredient in sildenafil is found inside this drug. This drug helps to maintain erection during intercourse for a long time. You should take this medicine only once a day. Taking too much medicine can cause side effects. This medication should be taken 30 to 40 minutes before intercourse. The effect of this drug lasts for at least 5 to 6 hours. Visit our store medypharmacy for more information.