How to store Levitra Levitra alternative for erectile dysfunction Levitra for erectile dysfunction FAQs Does Levitra cure erectile dysfunction Is Levitra for men with erectile dysfunction safe? Additionally, men with cardiovascular disease or diabetes might require closer observation and dosage adjustments. Use Levitra Vardenafil exactly as directed on the label, or as prescribed by your doctor. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine. Levitra is not a cure for erectile dysfunction. Dosing The dose of this medicine will be different for different patients.How Vardenafil works. Vardenafil is a phosphodiesterase-5 enzyme (PDE-5) works by blocking PDE-5, a protein in your body that normally prevents an erection from it blocks PDE-5, vardenafil helps an erection occur by allowing certain muscles in the penis to relax and the penis to fill with blood. –20 mg: 25– mg: –20 mg: 50– mg: What is a typical starting dose? 10 mg (5 mg for men over age 65 years) 50 mg: mg: mg. The recommended starting dose of Levitra is 10 mg, taken orally, as needed, approximately 60 minutes before sexual activity. The dose may be increased to a maximum 20 mg or decreased to 5 mg based on efficacy and side effects. The maximum recommended dosing frequency is once per day.