Silvitra is a combination drug that's used to help men develop and maintain erections. It can improve a man's wellbeing by reducing sexual dysfunction. The active ingredients in Silvitra are sildenafil and vardenafil, more commonly known as Viagra and Levitra. The combination helps men who may not respond well to just one or the other. Take Silvitra exactly as prescribed, typically one hour before you plan to be intimate. Note that taking more than prescribed will not give you better results and may actually harm you.