Male erectile dysfunction is successfully treated with Fildena 100 purple pill in particular. Fildena 100 mg tablets should be taken 30 to 60 minutes before sexual activity. Make sure you thoroughly read the directions before taking Fildena 100 and see a doctor. Fildena, a PDE5 inhibitor drug, is closely related to the generic version of Viagra. Fildena refers to a group of medications made by Fortune Healthcare in India. Males who struggle to get a good erection may find relief with Fildena.