In addition, Fildena 100 Tablet is used to treat erectile dysfunction and impotence in males. Only men who are at least eighteen years old can use this medication. Sildenafil is an ingredient in this medication that helps men achieve a strong erection during sexual activity. This medication has a 3 to 6-hour half-life. Take this medication half an hour before your planned sexual activity. This medication can be taken either before or after food. Consume this medication with water; do not crush or chew the tablet. It is important that you take this medication as directed by your physician.