Filagra 100 mg oral medication is prescribed for men over 18 years of age. The drug is extensively used by men around the world and is found to yield the best results when consumed appropriately. Filagra promises guaranteed results with 100 percent satisfaction. It comes in varied dosages which provide men with wide options to choose from. Its function involves the release of nitric oxide (NO) in the corpus cavernosum of the male sexual organ. Sildenafil Citrate is a basic chemical compound of Filagra.