Fildena 100mg is a relatively recent medication that has been on the market for more than 20 years and is gaining popularity. It is intended for guys who suffer from erectile dysfunction. In general, it is both safe and effective. Sildenafil Citrate, the main ingredient in Fildena, operates similarly to Viagra in males, but without the side effects or problems associated with sexual activity. One of the most often used erectile dysfunction medications, for example, causes stomach pain and headaches (Viagra).