The drug Fildena 100 mg is used to treat or prevent erectile dysfunction in men. The main active salt used in the drug is called sildenafil citrate (100 mg). Online retailers sell 100mg tablets of Fildena 100mg. A man with ED cannot achieve an erection strong enough for intimate touch. Men who use this drug can increase blood flow to their genitalia, which will result in a hard erection. A novice should begin with a less potent drug because this one has a higher dosage. These days, ED is a fairly common problem, therefore don't be scared to visit your physician.