Filitra 10 is a medication that contains the active ingredient vardenafil, which is commonly used to treat erectile dysfunction (ED) in men. Vardenafil belongs to a class of drugs known as phosphodiesterase type 5 (PDE5) inhibitors. Vardenafil typically starts working within 30 to 60 minutes after ingestion. The effects may last for up to 4 to 6 hours, during which time the medication can help improve erectile function and facilitate satisfactory sexual activity. It's important to note that sexual stimulation is still necessary for vardenafil to be effective.