Fildena contains the active component sildenafil. Fildena is the most effective treatment for erectile dysfunction. Fildena is also available in various strengths. Fildena 100 A is taken one hour before intercourse and has a 5- to 6-hour duration. Fildena should only be taken once a day. Fildena is the most popular and effective medicine among males. For more information do visit medzsite.com.