This information is reviewed by a licensed practitioner who will assess your eligibility for the medication. Psychological factors like stress, depression, or anxiety can also contribute. It’s available in 25 mg, 50 mg, and mg tablets and lasts up to 18 hours. It depends on the platform and insurance provider. Levitra tablets and alcohol should generally not be used together. These PDE5 inhibitors may cause headache, flushing, drop in blood pressure, or other adverse effects. · Levitra – Dosage and Cost. Levitra medication is expensive when paid for out of pocket, costing approximately $15 per Levitra 20 mg tablet at many pharmacies. . Compare generic Levitra (vardenafil) prices available at Canadian and international online pharmacies with local U.S. pharmacy coupon prices. The lowest price on . Amazon Prime members get additional benefits including FREE 2-Day Delivery and low prices on medications. About this medication. VARDENAFIL (var DEN a fil) treats .