Fildena 100 purple pills is a medication for ED. Sildenafil citrate is a component of this medication. The generic names for these medications are sildenafil or viagra. As a result, Fildena 100 mg costs less than Sildenafil Citrate under brand name. Depending on the patient's weight, a variable strength of the medication may be administered. This medication is available without a prescription at any local drugstore, grocery store, or pharmacy online. If you don't take Fildena 100 mg as prescribed by your doctor, adverse effects may occur.