The difference between the vardenafil molecule and sildenafil citrate is a nitrogen atom’s position and the change of sildenafil’s piperazine ring methyl group to an ethyl group. Yes, ED pills can cause side effects. A phone or video consultation is sometimes required for legal purposes. What should I do if I missed a dose of Levitra Vardenafil? Food and Drug Administration FDA announced that a warning about possible deafness sudden hearing loss would be added to the drug labels of vardenafil, and other PDE5 inhibitors. If you think you or someone else may have overdosed on: Levitra Vardenafil , call your doctor or the Poison Control center.Price: from around $18 for 30 tablets of 20 mg of generic tadalafil: Blink Health states that vardenafil, the generic form of Levitra, starts at $ for 30 tablets of 20 mg. • LEVITRA is taken as needed: For most patients, the starting dose is 10 mg, up to once daily. Increase to 20 mg or decrease to 5 mg based on efficacy/tolerability. () • A starting dose of 5 mg LEVITRA should be considered in patients ≥65 years of age. () • LEVITRA is taken orally, approximately 60 minutes before sexual activity. You should consult your health care professional before taking any drug, changing your diet, or commencing or discontinuing any course of treatment. Vardenafil is used to treat Missing: price.